What is the Least Common Multiple of 76872 and 76880?

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 76872 and 76880 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76872 and 76880, than apply into the LCM equation.

GCF(76872,76880) = 8
LCM(76872,76880) = ( 76872 × 76880) / 8
LCM(76872,76880) = 5909919360 / 8
LCM(76872,76880) = 738739920

Least Common Multiple (LCM) of 76872 and 76880 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76872 and 76880. First we will calculate the prime factors of 76872 and 76880.

Prime Factorization of 76872

Prime Factorization of 76880

Now multiplying the highest exponent prime factors to calculate the LCM of 76872 and 76880.

LCM(76872,76880) = 2⁴ × 3¹ × 3203¹ × 5¹ × 31²
LCM(76872,76880) = 738739920