What is the Least Common Multiple of 85220 and 85240?

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 85220 and 85240 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85220 and 85240, than apply into the LCM equation.

GCF(85220,85240) = 20
LCM(85220,85240) = ( 85220 × 85240) / 20
LCM(85220,85240) = 7264152800 / 20
LCM(85220,85240) = 363207640

Least Common Multiple (LCM) of 85220 and 85240 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85220 and 85240. First we will calculate the prime factors of 85220 and 85240.

Prime Factorization of 85220

Prime Factorization of 85240

Now multiplying the highest exponent prime factors to calculate the LCM of 85220 and 85240.

LCM(85220,85240) = 2³ × 5¹ × 4261¹ × 2131¹
LCM(85220,85240) = 363207640