What is the Least Common Multiple of 77740 and 77746?

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 77740 and 77746 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77740 and 77746, than apply into the LCM equation.

GCF(77740,77746) = 2
LCM(77740,77746) = ( 77740 × 77746) / 2
LCM(77740,77746) = 6043974040 / 2
LCM(77740,77746) = 3021987020

Least Common Multiple (LCM) of 77740 and 77746 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77740 and 77746. First we will calculate the prime factors of 77740 and 77746.

Prime Factorization of 77740

Prime Factorization of 77746

Now multiplying the highest exponent prime factors to calculate the LCM of 77740 and 77746.

LCM(77740,77746) = 2² × 5¹ × 13² × 23¹ × 38873¹
LCM(77740,77746) = 3021987020