What is the Least Common Multiple of 9870 and 9875?

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 9870 and 9875 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9870 and 9875, than apply into the LCM equation.

GCF(9870,9875) = 5
LCM(9870,9875) = ( 9870 × 9875) / 5
LCM(9870,9875) = 97466250 / 5
LCM(9870,9875) = 19493250

Least Common Multiple (LCM) of 9870 and 9875 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9870 and 9875. First we will calculate the prime factors of 9870 and 9875.

Prime Factorization of 9870

Prime Factorization of 9875

Now multiplying the highest exponent prime factors to calculate the LCM of 9870 and 9875.

LCM(9870,9875) = 2¹ × 3¹ × 5³ × 7¹ × 47¹ × 79¹
LCM(9870,9875) = 19493250