What is the Least Common Multiple of 20955 and 20973?

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 20955 and 20973 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20955 and 20973, than apply into the LCM equation.

GCF(20955,20973) = 3
LCM(20955,20973) = ( 20955 × 20973) / 3
LCM(20955,20973) = 439489215 / 3
LCM(20955,20973) = 146496405

Least Common Multiple (LCM) of 20955 and 20973 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20955 and 20973. First we will calculate the prime factors of 20955 and 20973.

Prime Factorization of 20955

Prime Factorization of 20973

Now multiplying the highest exponent prime factors to calculate the LCM of 20955 and 20973.

LCM(20955,20973) = 3¹ × 5¹ × 11¹ × 127¹ × 6991¹
LCM(20955,20973) = 146496405