No, 1 is not prime.
1 & 37 - - - - - it's a prime.
Eighteen and thirty-two have two prime factors in common, 1 and 2.
The largest prime factor of 35 is seven.
19
19
19
1 is not prime, so it can't be a prime factor.
1 is a factor of 18; neither 1 nor 18 is prime.
Nope.... 1 is a factor of every prime number !
All prime numbers have a common factor of 1.
1 is.
Because 1 is not a prime number.