11978
This number is a composite.
π(11978) = 1!!+1!!+9!!+7!!+8!!. This is the largest number
with this property. [Gupta]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
π(11978) = 1!!+1!!+9!!+7!!+8!!. This is the largest number
with this property. [Gupta]