What is the Least Common Multiple of 31381 and 31391?

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 31381 and 31391 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31381 and 31391, than apply into the LCM equation.

GCF(31381,31391) = 1
LCM(31381,31391) = ( 31381 × 31391) / 1
LCM(31381,31391) = 985080971 / 1
LCM(31381,31391) = 985080971

Least Common Multiple (LCM) of 31381 and 31391 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31381 and 31391. First we will calculate the prime factors of 31381 and 31391.

Prime Factorization of 31381

Prime Factorization of 31391

Now multiplying the highest exponent prime factors to calculate the LCM of 31381 and 31391.

LCM(31381,31391) = 7¹ × 4483¹ × 31391¹
LCM(31381,31391) = 985080971