What is the Least Common Multiple of 912 and 922?

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 912 and 922 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 912 and 922, than apply into the LCM equation.

GCF(912,922) = 2
LCM(912,922) = ( 912 × 922) / 2
LCM(912,922) = 840864 / 2
LCM(912,922) = 420432

Least Common Multiple (LCM) of 912 and 922 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 912 and 922. First we will calculate the prime factors of 912 and 922.

Prime Factorization of 912

Prime Factorization of 922

Now multiplying the highest exponent prime factors to calculate the LCM of 912 and 922.

LCM(912,922) = 2⁴ × 3¹ × 19¹ × 461¹
LCM(912,922) = 420432