What is the Least Common Multiple of 31540 and 31544?

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 31540 and 31544 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31540 and 31544, than apply into the LCM equation.

GCF(31540,31544) = 4
LCM(31540,31544) = ( 31540 × 31544) / 4
LCM(31540,31544) = 994897760 / 4
LCM(31540,31544) = 248724440

Least Common Multiple (LCM) of 31540 and 31544 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31540 and 31544. First we will calculate the prime factors of 31540 and 31544.

Prime Factorization of 31540

Prime Factorization of 31544

Now multiplying the highest exponent prime factors to calculate the LCM of 31540 and 31544.

LCM(31540,31544) = 2³ × 5¹ × 19¹ × 83¹ × 3943¹
LCM(31540,31544) = 248724440