10000...33333 (55-digits)
This number is a prime.
10000 0000020654 4333333333 3333333333 3333333333 3333333333
The second of an infinite sequence of primes formed by
right-concatenating further instances of an identical
terminating digit (in this case the terminating prime digit
3 to 10000000002065443, the latter being the second of five
consecutive 17-digit primes in arithmetic progression with
a common difference of 30). The third prime in this
right-concatenated sequence, i.e.
10000000002065443333333333333333333333333333333333333333
differs by only a SINGLE additional identical digit! (Might
primes so formed and related by a SINGLE additional digit
one day be termed "Harrison Pairs"?) [Harrison]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell