What is the Least Common Multiple of 77856 and 77876?

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 77856 and 77876 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77856 and 77876, than apply into the LCM equation.

GCF(77856,77876) = 4
LCM(77856,77876) = ( 77856 × 77876) / 4
LCM(77856,77876) = 6063113856 / 4
LCM(77856,77876) = 1515778464

Least Common Multiple (LCM) of 77856 and 77876 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77856 and 77876. First we will calculate the prime factors of 77856 and 77876.

Prime Factorization of 77856

Prime Factorization of 77876

Now multiplying the highest exponent prime factors to calculate the LCM of 77856 and 77876.

LCM(77856,77876) = 2⁵ × 3¹ × 811¹ × 19469¹
LCM(77856,77876) = 1515778464