99899...99899 (25-digits)
This number is a prime.
99899 9989988388 9989999899
The largest "almost plus sign prime" of order 5.
9 9 8 9 9 9 9 8 9 9 8 8 3 8 8 9 9 8 9 9 9 9 8 9 9[Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell