Weakly Primes

In number theory, a prime number is called weakly prime if it becomes not prime when any one of its digits is changed to every single other digit.

In 2007 Jens Kruse Andersen found the 1000-digit weakly prime (17×101000−17)/99 + 21686652. This is the largest known weakly prime number as of 2011.

First 5: 294001, 505447, 584141, 604171, 971767

Checkout list of first: 10 weakly primes. You can also check all weakly primes.

Checkout weakly primes up to: 100, 500, 1000, 10000.



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