What is the Least Common Multiple of 83560 and 83570?

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 83560 and 83570 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83560 and 83570, than apply into the LCM equation.

GCF(83560,83570) = 10
LCM(83560,83570) = ( 83560 × 83570) / 10
LCM(83560,83570) = 6983109200 / 10
LCM(83560,83570) = 698310920

Least Common Multiple (LCM) of 83560 and 83570 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83560 and 83570. First we will calculate the prime factors of 83560 and 83570.

Prime Factorization of 83560

Prime Factorization of 83570

Now multiplying the highest exponent prime factors to calculate the LCM of 83560 and 83570.

LCM(83560,83570) = 2³ × 5¹ × 2089¹ × 61¹ × 137¹
LCM(83560,83570) = 698310920