What is the Least Common Multiple of 8620 and 8628?

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 8620 and 8628 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8620 and 8628, than apply into the LCM equation.

GCF(8620,8628) = 4
LCM(8620,8628) = ( 8620 × 8628) / 4
LCM(8620,8628) = 74373360 / 4
LCM(8620,8628) = 18593340

Least Common Multiple (LCM) of 8620 and 8628 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8620 and 8628. First we will calculate the prime factors of 8620 and 8628.

Prime Factorization of 8620

Prime Factorization of 8628

Now multiplying the highest exponent prime factors to calculate the LCM of 8620 and 8628.

LCM(8620,8628) = 2² × 5¹ × 431¹ × 3¹ × 719¹
LCM(8620,8628) = 18593340