What is the Least Common Multiple of 31121 and 31139?

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 31121 and 31139 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31121 and 31139, than apply into the LCM equation.

GCF(31121,31139) = 1
LCM(31121,31139) = ( 31121 × 31139) / 1
LCM(31121,31139) = 969076819 / 1
LCM(31121,31139) = 969076819

Least Common Multiple (LCM) of 31121 and 31139 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31121 and 31139. First we will calculate the prime factors of 31121 and 31139.

Prime Factorization of 31121

Prime Factorization of 31139

Now multiplying the highest exponent prime factors to calculate the LCM of 31121 and 31139.

LCM(31121,31139) = 31121¹ × 31139¹
LCM(31121,31139) = 969076819