What is the Least Common Multiple of 61407 and 61425?

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 61407 and 61425 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61407 and 61425, than apply into the LCM equation.

GCF(61407,61425) = 9
LCM(61407,61425) = ( 61407 × 61425) / 9
LCM(61407,61425) = 3771924975 / 9
LCM(61407,61425) = 419102775

Least Common Multiple (LCM) of 61407 and 61425 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61407 and 61425. First we will calculate the prime factors of 61407 and 61425.

Prime Factorization of 61407

Prime Factorization of 61425

Now multiplying the highest exponent prime factors to calculate the LCM of 61407 and 61425.

LCM(61407,61425) = 3³ × 6823¹ × 5² × 7¹ × 13¹
LCM(61407,61425) = 419102775