12
This number is a composite.
Single Curio View: (Seek other curios for this number)
The largest known number n such that product of n and nth
prime is a repdigit number(12*37=444). [Gupta]
Submitted: 2019-09-26 15:40:24; Last Modified: 2019-09-26 16:03:03.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell