What is the Least Common Multiple of 62400 and 62420?

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 62400 and 62420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 62400 and 62420, than apply into the LCM equation.

GCF(62400,62420) = 20
LCM(62400,62420) = ( 62400 × 62420) / 20
LCM(62400,62420) = 3895008000 / 20
LCM(62400,62420) = 194750400

Least Common Multiple (LCM) of 62400 and 62420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 62400 and 62420. First we will calculate the prime factors of 62400 and 62420.

Prime Factorization of 62400

Prime Factorization of 62420

Now multiplying the highest exponent prime factors to calculate the LCM of 62400 and 62420.

LCM(62400,62420) = 2⁶ × 3¹ × 5² × 13¹ × 3121¹
LCM(62400,62420) = 194750400