What is the Least Common Multiple of 31538 and 31558?

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 31538 and 31558 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31538 and 31558, than apply into the LCM equation.

GCF(31538,31558) = 2
LCM(31538,31558) = ( 31538 × 31558) / 2
LCM(31538,31558) = 995276204 / 2
LCM(31538,31558) = 497638102

Least Common Multiple (LCM) of 31538 and 31558 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31538 and 31558. First we will calculate the prime factors of 31538 and 31558.

Prime Factorization of 31538

Prime Factorization of 31558

Now multiplying the highest exponent prime factors to calculate the LCM of 31538 and 31558.

LCM(31538,31558) = 2¹ × 13¹ × 1213¹ × 31¹ × 509¹
LCM(31538,31558) = 497638102