Algebra Etc. engagement report
@AlgebraFact - 195K followers on X
Measured over 61 original posts from a 30-day window, last computed on October 10, 2026.
Engagement
A typical post picks up 41 interactions against 195K followers, an engagement rate of 0.021%. Measured over 61 original posts, its engagement rate beats 33% of 21,185 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 6.2K times each, and 0.66% of those impressions turn into an interaction. That is about 3.19% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.3 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 15:00 UTC, and Tuesday is the busiest day of the week. Of the 61 posts sampled, 16% carry an image or video and 43% link out. The account's strongest tracked post pulled 64K interactions, about 1568x its own typical post.
Measured over 61 original posts from a 30-day window, last computed on October 10, 2026.
Compared with accounts its own size
Algebra Etc.'s engagement rate beats 33% of the tracked X accounts closest to it in follower count (21,185 accounts, accounts of similar size (decile 9 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.
On engagement per impression rather than per follower it beats 32% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.
Where this sits in the catalog
At 0.021%, Algebra Etc. sits above the 10th percentile of the 212,146 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.025%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.025% |
| 50th percentile | 0.146% |
| 75th percentile | 0.694% |
| 90th percentile | 2.61% |
| 99th percentile | 83.1% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 15:00 UTC, and Tuesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 16% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 43% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | -3% | -3% to -2% | 54K |
- 16% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 43% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
- Its average post runs 86 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% below the same accounts' other posts.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- Sep 10, 20261568x their median
https://t.co/d7Pp9w8xLK
- Sep 16, 2026104x their median
https://t.co/ODuS9lwMBi
- Oct 7, 202610x their median
If matrices A and B commute, then they have a common eigenvector.
- Sep 14, 20266.6x their median
Two integers satisfy 1 < x < y and x + y ≤ 100. S is given the sum x + y and P is given the product xy. Then S and P have the following dialog. P: “I do not know the numbers.” S: “I knew you didn’t.” P: “Now I know them.” S: “Now I know them too.” What are x and y?
- Oct 8, 20265.8x their median
'If an assertion about matrices is false, there is usually a 2x2 matrix that reveals this.' -- Olga Tausky-Todd
- Sep 16, 20265.6x their median
The product of four consecutive Fibonacci numbers equals the product of two consecutive integers. For example, 3 × 5 × 8 × 13 = 39 × 40.
- Aug 21, 20265.2x their median
An algebraically closed field must be infinite.
- Sep 2, 20265.0x their median
If p is prime, every group of order p² is abelian.
- Sep 18, 20264.9x their median
The sum of the reciprocals of the primes diverges.
- Aug 27, 20263.6x their median
'Mathematics is the queen of the sciences and number theory is the queen of mathematics.' -- Carl Freidrich Gauss
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
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Reading these numbers
A typical post picks up 41 interactions against 195K followers, an engagement rate of 0.021%. Measured over 61 original posts, its engagement rate beats 33% of 21,185 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 6.2K times each, and 0.66% of those impressions turn into an interaction. That is about 3.19% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.3 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 15:00 UTC, and Tuesday is the busiest day of the week. Of the 61 posts sampled, 16% carry an image or video and 43% link out. The account's strongest tracked post pulled 64K interactions, about 1568x its own typical post.
- What is Algebra Etc.'s engagement rate on X?
- Algebra Etc. (@AlgebraFact) has an engagement rate of 0.021%, based on the median interactions across 61 original posts from the last 30 days against 195,047 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.021%, Algebra Etc. sits above the 10th percentile of the 212,146 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @AlgebraFact have real engagement?
- Its engagement rate beats 33% of the tracked X accounts closest to it in follower count (21,185 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
- When does @AlgebraFact post?
- Most posts go out around 15:00 UTC, and Tuesday is its busiest day, at roughly 2.33 posts per day across the measured window.