406
This number is a composite.
406 is the smaller number in the first set of three consecutive triangular numbers that are sphenic {406, 435, 465}. [Honaker]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a composite.
406 is the smaller number in the first set of three consecutive triangular numbers that are sphenic {406, 435, 465}. [Honaker]