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2024-12-19 06:53:33

David Meyer on Nostr: Here's a curious fact: 73939133 is the largest base-10 prime number with the ...

Here's a curious fact: 73939133 is the largest base-10 prime number with the fascinating property that if you take one or more digits off the right end, the resulting numbers are all prime. Said another way: 73939133 is largest base-10 right-truncatable prime [1,2,5].

Apparently there are 83 base-10 right-truncatable primes [3,4].

References
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[1] "Truncatable prime", https://en.wikipedia.org/wiki/Truncatable_prime

[2] " Right-truncatable primes: every prefix is prime", https://oeis.org/A024770

[3] "Truncatable Prime", https://mathworld.wolfram.com/TruncatablePrime.html

[4] "right-truncatable prime", https://t5k.org/glossary/page.php?sort=RightTruncatablePrime

[5] "On Truncatable Primes", https://www.ams.org/journals/mcom/1977-31-137/S0025-5718-1977-0427213-2/S0025-5718-1977-0427213-2.pdf

#righttruncatableprimes #primes #numbertheory #math #maths

Author Public Key
npub1eek26lgxr8a5e9xytuhsauxn82j6ytkdu27xeuqv4sz4rtvsw62qjlk3gv