190619
This number is a composite.
The smallest invertible 4-almost prime, (190619 = 11 x 13 x
31 x 43, whose inverted number, i.e., 619061, is prime. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The smallest invertible 4-almost prime, (190619 = 11 x 13 x
31 x 43, whose inverted number, i.e., 619061, is prime. [Loungrides]