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Numberphile

Sum of Cubes and Other Classic Series: Visual Proofs

Published 18 Jul 2026 · 39 daily observations recorded · last updated 2026-09-29

Views
173,214
Avg views / hour
99.3
since publish (lifetime average)
Recent velocity
12.5
+301 views over 24h (2026-09-28 → 2026-09-29)
vs channel baseline
1.1×
Channel median
152,807
over 25 comparable videos

Recent growth

Last 7 days
+2,507 views
measured 2026-09-22 → 2026-09-29 (168h)
Last 30 days
+18,496 views
measured 2026-08-30 → 2026-09-29 (720h)

Performance history

Every observation TubeSum recorded, plotted as measured.

Views over time — 39 observed points, 94.5K to 173K views 0 60.6K 121K 182K Jul 20, 2026 · 94,475 views Jul 22, 2026 · 113,512 views Jul 23, 2026 · 119,084 views Jul 24, 2026 · 123,386 views Jul 27, 2026 · 129,896 views Jul 31, 2026 · 135,042 views Aug 5, 2026 · 138,348 views Aug 7, 2026 · 139,499 views Aug 10, 2026 · 140,924 views Aug 17, 2026 · 146,297 views Aug 18, 2026 · 147,850 views Aug 24, 2026 · 151,815 views Aug 27, 2026 · 153,179 views Aug 30, 2026 · 154,718 views Aug 31, 2026 · 155,086 views Sep 1, 2026 · 155,660 views Sep 4, 2026 · 157,142 views Sep 6, 2026 · 157,697 views Sep 7, 2026 · 158,007 views Sep 9, 2026 · 158,712 views Sep 11, 2026 · 159,677 views Sep 12, 2026 · 159,937 views Sep 13, 2026 · 160,773 views Sep 14, 2026 · 162,577 views Sep 15, 2026 · 164,895 views Sep 16, 2026 · 166,269 views Sep 17, 2026 · 168,378 views Sep 18, 2026 · 169,032 views Sep 19, 2026 · 169,538 views Sep 20, 2026 · 169,818 views Sep 21, 2026 · 170,000 views Sep 22, 2026 · 170,707 views Sep 23, 2026 · 171,356 views Sep 24, 2026 · 171,746 views Sep 25, 2026 · 172,063 views Sep 26, 2026 · 172,326 views Sep 27, 2026 · 172,599 views Sep 28, 2026 · 172,913 views Sep 29, 2026 · 173,214 views Jul 20 Sep 9 Sep 29

Based on 39 observations · last observed Sep 29, 2026 · straight lines connect consecutive observations — TubeSum does not measure the days between them.

All observations

The same points the chart plots, as exact numbers. Gaps mean no observation was taken that day.

Date Views Avg views / hour Channel median
2026-09-29 173,214 99.3 152,807
2026-09-28 172,913 100.5 147,828
2026-09-27 172,599 101.8 147,828
2026-09-26 172,326 103.1 147,828
2026-09-25 172,063 104.3 147,828
2026-09-24 171,746 105.8 147,828
2026-09-23 171,356 107.1 147,828
2026-09-22 170,707 108.3 147,828
2026-09-21 170,000 109.4 147,828
2026-09-20 169,818 111.1 147,828
2026-09-19 169,538 112.7 147,828
2026-09-18 169,032 114.1 147,828
2026-09-17 168,378 115.5 147,828
2026-09-16 166,269 116.1 147,828
2026-09-15 164,895 117.1 147,828
2026-09-14 162,577 117.4 147,828
2026-09-13 160,773 118.2 147,828
2026-09-12 159,937 119.5 147,828
2026-09-11 159,677 121.5 147,828
2026-09-09 158,712 125.6 145,503
2026-09-07 158,007 129.6 145,503
2026-09-06 157,697 132.3 145,503
2026-09-04 157,142 136.9 145,503
2026-09-01 155,660 144.5 145,503
2026-08-31 155,086 148.0 145,503
2026-08-30 154,718 151.1 145,503
2026-08-27 153,179 160.6 144,814
2026-08-24 151,815 172.3 147,106
2026-08-18 147,850 197.9 147,106
2026-08-17 146,297 204.9 147,106
2026-08-10 140,924 258.6 147,106
2026-08-07 139,499 292.5 147,106
2026-08-05 138,348 324.8 147,106
2026-07-31 135,042 442.8 147,106
2026-07-27 129,896 607.0 147,106
2026-07-24 123,386 875.1 147,106
2026-07-23 119,084 1,053.8 147,106
2026-07-22 113,512 1,304.7 147,106
2026-07-20 94,475 2,197.1 147,106

Content analysis

Transcript, chapters and structure for this video live on its analysis page — performance and content are separate documents on TubeSum.

Read transcript & analysis →