What is the Least Common Multiple of 31940 and 31954?

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 31940 and 31954 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31940 and 31954, than apply into the LCM equation.

GCF(31940,31954) = 2
LCM(31940,31954) = ( 31940 × 31954) / 2
LCM(31940,31954) = 1020610760 / 2
LCM(31940,31954) = 510305380

Least Common Multiple (LCM) of 31940 and 31954 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31940 and 31954. First we will calculate the prime factors of 31940 and 31954.

Prime Factorization of 31940

Prime Factorization of 31954

Now multiplying the highest exponent prime factors to calculate the LCM of 31940 and 31954.

LCM(31940,31954) = 2² × 5¹ × 1597¹ × 13¹ × 1229¹
LCM(31940,31954) = 510305380