68729...03714 (293-digits)

This number is a composite.

                                                              687 2968240664
4277238837 4862317475 3092424715 4108646671 7521926185 8308848740 5790957964
7328830691 0256104343 6779663935 5951720423 5730659491 6344606074 5647128680
7828760805 5203024658 3594390175 8088391097 8666185875 7174155410 8449492650
0475167381 1685059273 7818189975 3839260609 4522653652 7485090187 9881203714

+ The smallest term in the Lucas-Lehmer sequence whose prime factors aren't completely known.

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell