What is the Least Common Multiple of 87620 and 87639?

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 87620 and 87639 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87620 and 87639, than apply into the LCM equation.

GCF(87620,87639) = 1
LCM(87620,87639) = ( 87620 × 87639) / 1
LCM(87620,87639) = 7678929180 / 1
LCM(87620,87639) = 7678929180

Least Common Multiple (LCM) of 87620 and 87639 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87620 and 87639. First we will calculate the prime factors of 87620 and 87639.

Prime Factorization of 87620

Prime Factorization of 87639

Now multiplying the highest exponent prime factors to calculate the LCM of 87620 and 87639.

LCM(87620,87639) = 2² × 5¹ × 13¹ × 337¹ × 3¹ × 131¹ × 223¹
LCM(87620,87639) = 7678929180