What is the Least Common Multiple of 65720 and 65738?

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 65720 and 65738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65720 and 65738, than apply into the LCM equation.

GCF(65720,65738) = 2
LCM(65720,65738) = ( 65720 × 65738) / 2
LCM(65720,65738) = 4320301360 / 2
LCM(65720,65738) = 2160150680

Least Common Multiple (LCM) of 65720 and 65738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65720 and 65738. First we will calculate the prime factors of 65720 and 65738.

Prime Factorization of 65720

Prime Factorization of 65738

Now multiplying the highest exponent prime factors to calculate the LCM of 65720 and 65738.

LCM(65720,65738) = 2³ × 5¹ × 31¹ × 53¹ × 32869¹
LCM(65720,65738) = 2160150680