What is the Least Common Multiple of 87810 and 87815?

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 87810 and 87815 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87810 and 87815, than apply into the LCM equation.

GCF(87810,87815) = 5
LCM(87810,87815) = ( 87810 × 87815) / 5
LCM(87810,87815) = 7711035150 / 5
LCM(87810,87815) = 1542207030

Least Common Multiple (LCM) of 87810 and 87815 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87810 and 87815. First we will calculate the prime factors of 87810 and 87815.

Prime Factorization of 87810

Prime Factorization of 87815

Now multiplying the highest exponent prime factors to calculate the LCM of 87810 and 87815.

LCM(87810,87815) = 2¹ × 3¹ × 5¹ × 2927¹ × 7¹ × 13¹ × 193¹
LCM(87810,87815) = 1542207030