What is the Least Common Multiple of 86840 and 86856?

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 86840 and 86856 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86840 and 86856, than apply into the LCM equation.

GCF(86840,86856) = 8
LCM(86840,86856) = ( 86840 × 86856) / 8
LCM(86840,86856) = 7542575040 / 8
LCM(86840,86856) = 942821880

Least Common Multiple (LCM) of 86840 and 86856 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86840 and 86856. First we will calculate the prime factors of 86840 and 86856.

Prime Factorization of 86840

Prime Factorization of 86856

Now multiplying the highest exponent prime factors to calculate the LCM of 86840 and 86856.

LCM(86840,86856) = 2³ × 5¹ × 13¹ × 167¹ × 3¹ × 7¹ × 11¹ × 47¹
LCM(86840,86856) = 942821880