What is the Least Common Multiple of 31620 and 31631?

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 31631 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 31631, than apply into the LCM equation.

GCF(31620,31631) = 1
LCM(31620,31631) = ( 31620 × 31631) / 1
LCM(31620,31631) = 1000172220 / 1
LCM(31620,31631) = 1000172220

Least Common Multiple (LCM) of 31620 and 31631 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31620 and 31631. First we will calculate the prime factors of 31620 and 31631.

Prime Factorization of 31620

Prime Factorization of 31631

Now multiplying the highest exponent prime factors to calculate the LCM of 31620 and 31631.

LCM(31620,31631) = 2² × 3¹ × 5¹ × 17¹ × 31¹ × 47¹ × 673¹
LCM(31620,31631) = 1000172220