What is the Least Common Multiple of 85 and 95?

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 85 and 95 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85 and 95, than apply into the LCM equation.

GCF(85,95) = 5
LCM(85,95) = ( 85 × 95) / 5
LCM(85,95) = 8075 / 5
LCM(85,95) = 1615

Least Common Multiple (LCM) of 85 and 95 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85 and 95. First we will calculate the prime factors of 85 and 95.

Prime Factorization of 85

Prime Factorization of 95

Now multiplying the highest exponent prime factors to calculate the LCM of 85 and 95.

LCM(85,95) = 5¹ × 17¹ × 19¹
LCM(85,95) = 1615