What is the Least Common Multiple of 64421 and 64432?

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 64421 and 64432 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64421 and 64432, than apply into the LCM equation.

GCF(64421,64432) = 1
LCM(64421,64432) = ( 64421 × 64432) / 1
LCM(64421,64432) = 4150773872 / 1
LCM(64421,64432) = 4150773872

Least Common Multiple (LCM) of 64421 and 64432 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64421 and 64432. First we will calculate the prime factors of 64421 and 64432.

Prime Factorization of 64421

Prime Factorization of 64432

Now multiplying the highest exponent prime factors to calculate the LCM of 64421 and 64432.

LCM(64421,64432) = 7¹ × 9203¹ × 2⁴ × 4027¹
LCM(64421,64432) = 4150773872