What is the Least Common Multiple of 31620 and 31628?

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 31620 and 31628 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31620 and 31628, than apply into the LCM equation.

GCF(31620,31628) = 4
LCM(31620,31628) = ( 31620 × 31628) / 4
LCM(31620,31628) = 1000077360 / 4
LCM(31620,31628) = 250019340

Least Common Multiple (LCM) of 31620 and 31628 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31620 and 31628. First we will calculate the prime factors of 31620 and 31628.

Prime Factorization of 31620

Prime Factorization of 31628

Now multiplying the highest exponent prime factors to calculate the LCM of 31620 and 31628.

LCM(31620,31628) = 2² × 3¹ × 5¹ × 17¹ × 31¹ × 7907¹
LCM(31620,31628) = 250019340