2700
This number is a composite.
Just showing those entries submitted by 'Firoozbakht': (Click here to show all)
2700 = π(2 + 7 + 0 + 0) * π(2! + 7! + 0! + 0!). Note that 2700 is the only natural number with this property. [Firoozbakht]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell