1023487
This number is a prime.
Just showing those entries submitted by 'Bajpai': (Click here to show all)
The smallest emirp 1023487 that remains emirp for D = 2, 3,
5, 7 in 1D0D2D3D4D8D7. The emirps thus obtained are
1202223242827, 1303233343837, 1505253545857, 1707273747877. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell