Primes without a 7 - Numberphile
467K views · Nov 20, 2019 · Science & Technology
Comments · 1.1K
@matteogirelli1023 · 4 years ago
Who's back to this after he won the fields medal?
17
@meriadocbrandebouc · 4 years ago
The guy just got the Field’s Medal! Congratulations sir 👏🏻
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@MrBarryyoung · 6 years ago
Some people talk with their hands; James talks with his head.
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@pragyan394 · 6 years ago
Feels like a recreational problem...<br>Writes out a proof spanning 70 pages. Absolute mad lad
641
@aj_they · 6 years ago (edited)
I hear 'all 7s' and immediately go 7 * 111111...111 etc.<br><br><b>Edit for a few people:</b> I'm not saying anything negative about anyone in this video, just bringing to light an error that was made for viewers. I understand completely that it was an on-the-spot discussion and that errors can and will be made, and in no way was I trying to be disparaging.<br><br>I didn't in any way expect this to get as many likes as it did, so thanks, I guess?
2.3K
@caio-jl6qw · 6 years ago
Legend has it that James is still shaking his head.
483
@cwaddle · 6 years ago
For a serious mathematician, i like that this guys always got a cheeky smile hiding
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@ImCovino · 6 years ago
I'm really glad you showed the clip at the start of the largest known prime and how evenly the digits are distrubuted within it. Really puts into perspective how uncommon a prime with absolutley zero 7s in it would be, and yet there are still infinitley many of them.
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@negin1812 · 6 years ago
Professor's looking like he's really fascinated by his discovery. He can't sit on his chair calmly 😊
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@mastersasori01 · 6 years ago
Hey, he's one of the solvers of Duffin- Schaeffer Conjecture.. crazy smart dude
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@vincentpelletier57 · 6 years ago (edited)
All sevens: it is divisible by 7 and the number made all of 1s with the same number of digits, so definitely not prime! Only works with only 1s to get (possibly) a prime.
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@shashwatsharma2406 · 4 years ago
WHOS HERE AFTER HE GOT FIELDS MEDAL?
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