What is the Least Common Multiple of 87065 and 87080?

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 87065 and 87080 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87065 and 87080, than apply into the LCM equation.

GCF(87065,87080) = 5
LCM(87065,87080) = ( 87065 × 87080) / 5
LCM(87065,87080) = 7581620200 / 5
LCM(87065,87080) = 1516324040

Least Common Multiple (LCM) of 87065 and 87080 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87065 and 87080. First we will calculate the prime factors of 87065 and 87080.

Prime Factorization of 87065

Prime Factorization of 87080

Now multiplying the highest exponent prime factors to calculate the LCM of 87065 and 87080.

LCM(87065,87080) = 5¹ × 11¹ × 1583¹ × 2³ × 7¹ × 311¹
LCM(87065,87080) = 1516324040