This number is a composite.

+ 98 can be the partial sum of the first n Goldbach numbers which are the number of decompositions of 2n into the sum of two primes. [Russo]

+ 98 repeated 9+8 times, followed by 1, is prime (98989898989898989898989898989898981). 98 times 9+8, followed by 1, is a palindromic prime (16661). [Silva]

+ The smallest composite number whose reversal is a Fibonacci prime. [Gudipati]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell