1541
This number is a composite.
The smallest composite number that is a pseudoprime in bases 3 and 5 by Fermat's Little Theorem (1541 = 23*67).
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The smallest composite number that is a pseudoprime in bases 3 and 5 by Fermat's Little Theorem (1541 = 23*67).