19131612631094571991039
This number is a prime.
191 3161263109 4571991039
A prime formed from the alternate concatenation of first n invertible and Honaker primes, i.e., {19, 131, 61, 263, 109, 457, 199, 1039}, (case n=4). [Jha]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell