What is the Least Common Multiple of 31281 and 31285?

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 31281 and 31285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31281 and 31285, than apply into the LCM equation.

GCF(31281,31285) = 1
LCM(31281,31285) = ( 31281 × 31285) / 1
LCM(31281,31285) = 978626085 / 1
LCM(31281,31285) = 978626085

Least Common Multiple (LCM) of 31281 and 31285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31281 and 31285. First we will calculate the prime factors of 31281 and 31285.

Prime Factorization of 31281

Prime Factorization of 31285

Now multiplying the highest exponent prime factors to calculate the LCM of 31281 and 31285.

LCM(31281,31285) = 3¹ × 10427¹ × 5¹ × 6257¹
LCM(31281,31285) = 978626085