What is the Least Common Multiple of 20953 and 20971?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 20953 and 20971 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20953 and 20971, than apply into the LCM equation.

GCF(20953,20971) = 1
LCM(20953,20971) = ( 20953 × 20971) / 1
LCM(20953,20971) = 439405363 / 1
LCM(20953,20971) = 439405363

Least Common Multiple (LCM) of 20953 and 20971 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20953 and 20971. First we will calculate the prime factors of 20953 and 20971.

Prime Factorization of 20953

Prime Factorization of 20971

Now multiplying the highest exponent prime factors to calculate the LCM of 20953 and 20971.

LCM(20953,20971) = 23¹ × 911¹ × 67¹ × 313¹
LCM(20953,20971) = 439405363