What is the Least Common Multiple of 87168 and 87178?

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 87168 and 87178 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87168 and 87178, than apply into the LCM equation.

GCF(87168,87178) = 2
LCM(87168,87178) = ( 87168 × 87178) / 2
LCM(87168,87178) = 7599131904 / 2
LCM(87168,87178) = 3799565952

Least Common Multiple (LCM) of 87168 and 87178 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87168 and 87178. First we will calculate the prime factors of 87168 and 87178.

Prime Factorization of 87168

Prime Factorization of 87178

Now multiplying the highest exponent prime factors to calculate the LCM of 87168 and 87178.

LCM(87168,87178) = 2⁷ × 3¹ × 227¹ × 7¹ × 13¹ × 479¹
LCM(87168,87178) = 3799565952