What is the Least Common Multiple of 87605 and 87620?

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 87605 and 87620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87605 and 87620, than apply into the LCM equation.

GCF(87605,87620) = 5
LCM(87605,87620) = ( 87605 × 87620) / 5
LCM(87605,87620) = 7675950100 / 5
LCM(87605,87620) = 1535190020

Least Common Multiple (LCM) of 87605 and 87620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87605 and 87620. First we will calculate the prime factors of 87605 and 87620.

Prime Factorization of 87605

Prime Factorization of 87620

Now multiplying the highest exponent prime factors to calculate the LCM of 87605 and 87620.

LCM(87605,87620) = 5¹ × 7¹ × 2503¹ × 2² × 13¹ × 337¹
LCM(87605,87620) = 1535190020