What is the Least Common Multiple of 31540 and 31548?

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 31540 and 31548 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31540 and 31548, than apply into the LCM equation.

GCF(31540,31548) = 4
LCM(31540,31548) = ( 31540 × 31548) / 4
LCM(31540,31548) = 995023920 / 4
LCM(31540,31548) = 248755980

Least Common Multiple (LCM) of 31540 and 31548 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31540 and 31548. First we will calculate the prime factors of 31540 and 31548.

Prime Factorization of 31540

Prime Factorization of 31548

Now multiplying the highest exponent prime factors to calculate the LCM of 31540 and 31548.

LCM(31540,31548) = 2² × 5¹ × 19¹ × 83¹ × 3¹ × 11¹ × 239¹
LCM(31540,31548) = 248755980