84
This number is a composite.
Just showing those entries submitted by 'Wolfe': (Click here to show all)
The product of its digits minus 1 is prime. [Wolfe]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
Just showing those entries submitted by 'Wolfe': (Click here to show all)
The product of its digits minus 1 is prime. [Wolfe]