What is the Least Common Multiple of 61720 and 61736?

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 61720 and 61736 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61720 and 61736, than apply into the LCM equation.

GCF(61720,61736) = 8
LCM(61720,61736) = ( 61720 × 61736) / 8
LCM(61720,61736) = 3810345920 / 8
LCM(61720,61736) = 476293240

Least Common Multiple (LCM) of 61720 and 61736 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61720 and 61736. First we will calculate the prime factors of 61720 and 61736.

Prime Factorization of 61720

Prime Factorization of 61736

Now multiplying the highest exponent prime factors to calculate the LCM of 61720 and 61736.

LCM(61720,61736) = 2³ × 5¹ × 1543¹ × 7717¹
LCM(61720,61736) = 476293240