This number is a prime.

Just showing those entries submitted by 'Gaydos': (Click here to show all)

+ The year the first untethered manned hot air balloon flight was flown. [Gaydos]

+ The smallest number n for which the total number of digits in the first n Cyclops primes is a Cyclops prime (11093). [Gaydos]

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