Special case. 13 and 31 have no common factors other than 1. In such cases, the GCF is 1 and the LCM is their product (403).
The GCF is 1.
403
The LCM of the given prime numbers is 403
The GCF is 1.
The GCF is 1.
Multiply them together.
Express the numbers in prime factorisation in power form: 12 = 22 x 31 27 = 33 For gcf multiply together the lowest power of the common primes: gcf of 12 and 27 = 31 = 3 For LCM multiply together the highest power of all the primes (across the numbers): LCM of 12 and 27 = 22 x 33 = 108
You need at least two numbers to find a GCF. IF that's 46 and 31, the GCF is 1.
The GCF is 31.
The LCM is 93.