What is the Least Common Multiple of 64605 and 64623?

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 64605 and 64623 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64605 and 64623, than apply into the LCM equation.

GCF(64605,64623) = 3
LCM(64605,64623) = ( 64605 × 64623) / 3
LCM(64605,64623) = 4174968915 / 3
LCM(64605,64623) = 1391656305

Least Common Multiple (LCM) of 64605 and 64623 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64605 and 64623. First we will calculate the prime factors of 64605 and 64623.

Prime Factorization of 64605

Prime Factorization of 64623

Now multiplying the highest exponent prime factors to calculate the LCM of 64605 and 64623.

LCM(64605,64623) = 3¹ × 5¹ × 59¹ × 73¹ × 13¹ × 1657¹
LCM(64605,64623) = 1391656305