What is the Least Common Multiple of 64438 and 64456?

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 64438 and 64456 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64438 and 64456, than apply into the LCM equation.

GCF(64438,64456) = 2
LCM(64438,64456) = ( 64438 × 64456) / 2
LCM(64438,64456) = 4153415728 / 2
LCM(64438,64456) = 2076707864

Least Common Multiple (LCM) of 64438 and 64456 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64438 and 64456. First we will calculate the prime factors of 64438 and 64456.

Prime Factorization of 64438

Prime Factorization of 64456

Now multiplying the highest exponent prime factors to calculate the LCM of 64438 and 64456.

LCM(64438,64456) = 2³ × 11¹ × 29¹ × 101¹ × 7¹ × 1151¹
LCM(64438,64456) = 2076707864