What is the Least Common Multiple of 71931 and 71949?

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 71931 and 71949 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71931 and 71949, than apply into the LCM equation.

GCF(71931,71949) = 3
LCM(71931,71949) = ( 71931 × 71949) / 3
LCM(71931,71949) = 5175363519 / 3
LCM(71931,71949) = 1725121173

Least Common Multiple (LCM) of 71931 and 71949 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71931 and 71949. First we will calculate the prime factors of 71931 and 71949.

Prime Factorization of 71931

Prime Factorization of 71949

Now multiplying the highest exponent prime factors to calculate the LCM of 71931 and 71949.

LCM(71931,71949) = 3¹ × 23977¹ × 29¹ × 827¹
LCM(71931,71949) = 1725121173