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perfect prime pairs,trios

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#1 phil1882


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Posted 22 April 2014 - 04:16 PM

inspired by BMADS topic, 

1) what's the smallest product of 3 primes that's larger than the sum of each prime number squared?

2) whats the smallest prime number cubed where the digits add up to the original prime?

3) how many prime numbers are equal to the sum of at most 25 primes less than 100?


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Posted 22 April 2014 - 04:25 PM

Spoiler for

Edited by BMAD, 22 April 2014 - 04:27 PM.

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