What is the Least Common Multiple of 4021 and 4031?

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 4021 and 4031 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4021 and 4031, than apply into the LCM equation.

GCF(4021,4031) = 1
LCM(4021,4031) = ( 4021 × 4031) / 1
LCM(4021,4031) = 16208651 / 1
LCM(4021,4031) = 16208651

Least Common Multiple (LCM) of 4021 and 4031 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4021 and 4031. First we will calculate the prime factors of 4021 and 4031.

Prime Factorization of 4021

Prime Factorization of 4031

Now multiplying the highest exponent prime factors to calculate the LCM of 4021 and 4031.

LCM(4021,4031) = 4021¹ × 29¹ × 139¹
LCM(4021,4031) = 16208651