253679
This number is a prime.
Just showing those entries submitted by 'De Geest': (Click here to show all)
The smallest first member of a Twin primes pair (a,b) such that (a+b) +/- 1 is a second Twin primes pair (c,d) such that (c+d) +/- 1 is a third Twin primes pair (e,f) such that (e+f) +/- 1 is a fourth Twin primes pair (g,h). [De Geest]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell