What is the Least Common Multiple of 4020 and 4025?

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 4020 and 4025 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4020 and 4025, than apply into the LCM equation.

GCF(4020,4025) = 5
LCM(4020,4025) = ( 4020 × 4025) / 5
LCM(4020,4025) = 16180500 / 5
LCM(4020,4025) = 3236100

Least Common Multiple (LCM) of 4020 and 4025 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4020 and 4025. First we will calculate the prime factors of 4020 and 4025.

Prime Factorization of 4020

Prime Factorization of 4025

Now multiplying the highest exponent prime factors to calculate the LCM of 4020 and 4025.

LCM(4020,4025) = 2² × 3¹ × 5² × 67¹ × 7¹ × 23¹
LCM(4020,4025) = 3236100