16312...99999 (1000-digits)
This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).
(1013*1012*1011*…*675*674)*(673+672+671+...4+3+2)-1 is a titanic prime obtained by an arithmetic expression using once each integer from 1 to 1013. [Rivera]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell