As 1 is a factor of every number, every factor of of a 1-fender must end in aOriginally Posted byphatjigga

1. Now if is a prime ending in a 1, then p is a 1-fender, but not composite

(composite means it has more factors that 1 and itself).

Let be a prime ending in a 1, what is the last digit of ? What are the

factors of (which is composite)?

RonL

RonL