10

This number is a composite.

Single Curio View:   (Seek other curios for this number)
The 10 prime numbers 1103, 1109, 1117, 1667, 1877, 3001, 3389, 3559, 4001, and 4517 each has the same Collatz trajectory length as its prime index. There are no more of these in the first billion primes. Are there any more at all? [Gaydos]

Submitted: 2019-08-03 00:38:32;   Last Modified: 2019-08-03 07:37:14.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell