What is the Least Common Multiple of 72605 and 72620?

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 72605 and 72620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72605 and 72620, than apply into the LCM equation.

GCF(72605,72620) = 5
LCM(72605,72620) = ( 72605 × 72620) / 5
LCM(72605,72620) = 5272575100 / 5
LCM(72605,72620) = 1054515020

Least Common Multiple (LCM) of 72605 and 72620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72605 and 72620. First we will calculate the prime factors of 72605 and 72620.

Prime Factorization of 72605

Prime Factorization of 72620

Now multiplying the highest exponent prime factors to calculate the LCM of 72605 and 72620.

LCM(72605,72620) = 5¹ × 13¹ × 1117¹ × 2² × 3631¹
LCM(72605,72620) = 1054515020