What is the Least Common Multiple of 55716 and 55720?

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 55716 and 55720 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55716 and 55720, than apply into the LCM equation.

GCF(55716,55720) = 4
LCM(55716,55720) = ( 55716 × 55720) / 4
LCM(55716,55720) = 3104495520 / 4
LCM(55716,55720) = 776123880

Least Common Multiple (LCM) of 55716 and 55720 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55716 and 55720. First we will calculate the prime factors of 55716 and 55720.

Prime Factorization of 55716

Prime Factorization of 55720

Now multiplying the highest exponent prime factors to calculate the LCM of 55716 and 55720.

LCM(55716,55720) = 2³ × 3¹ × 4643¹ × 5¹ × 7¹ × 199¹
LCM(55716,55720) = 776123880