What is the Least Common Multiple of 86870 and 86885?

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 86870 and 86885 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86870 and 86885, than apply into the LCM equation.

GCF(86870,86885) = 5
LCM(86870,86885) = ( 86870 × 86885) / 5
LCM(86870,86885) = 7547699950 / 5
LCM(86870,86885) = 1509539990

Least Common Multiple (LCM) of 86870 and 86885 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86870 and 86885. First we will calculate the prime factors of 86870 and 86885.

Prime Factorization of 86870

Prime Factorization of 86885

Now multiplying the highest exponent prime factors to calculate the LCM of 86870 and 86885.

LCM(86870,86885) = 2¹ × 5¹ × 7¹ × 17¹ × 73¹ × 17377¹
LCM(86870,86885) = 1509539990