3721
This number is a composite.
The largest 4-digit tnaillirb, i.e., 3721 = 61^2 and its
reversal 1273 = 19 x 67. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The largest 4-digit tnaillirb, i.e., 3721 = 61^2 and its
reversal 1273 = 19 x 67. [Loungrides]