What is the Least Common Multiple of 60620 and 60640?

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 60620 and 60640 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 60620 and 60640, than apply into the LCM equation.

GCF(60620,60640) = 20
LCM(60620,60640) = ( 60620 × 60640) / 20
LCM(60620,60640) = 3675996800 / 20
LCM(60620,60640) = 183799840

Least Common Multiple (LCM) of 60620 and 60640 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 60620 and 60640. First we will calculate the prime factors of 60620 and 60640.

Prime Factorization of 60620

Prime Factorization of 60640

Now multiplying the highest exponent prime factors to calculate the LCM of 60620 and 60640.

LCM(60620,60640) = 2⁵ × 5¹ × 7¹ × 433¹ × 379¹
LCM(60620,60640) = 183799840