What is the Least Common Multiple of 31715 and 31730?

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 31715 and 31730 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31715 and 31730, than apply into the LCM equation.

GCF(31715,31730) = 5
LCM(31715,31730) = ( 31715 × 31730) / 5
LCM(31715,31730) = 1006316950 / 5
LCM(31715,31730) = 201263390

Least Common Multiple (LCM) of 31715 and 31730 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31715 and 31730. First we will calculate the prime factors of 31715 and 31730.

Prime Factorization of 31715

Prime Factorization of 31730

Now multiplying the highest exponent prime factors to calculate the LCM of 31715 and 31730.

LCM(31715,31730) = 5¹ × 6343¹ × 2¹ × 19¹ × 167¹
LCM(31715,31730) = 201263390