Comment by dhruvrrp | Hacker News Reader

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Comment by dhruvrrp | Hacker News Reader

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53 is prime

Oh, shoot, brain fart. I was thinking OP was listing primes and forgot one. :D

21923847?

Only 14 away from a prime though

57?

https://mathoverflow.net/questions/326912/story-of-grothendi...

5+7=12 thus divisible by 3 and not prime

https://en.wikipedia.org/wiki/Shure_SM57

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