What is the Least Common Multiple of 39900 and 39910?

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 39900 and 39910 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39900 and 39910, than apply into the LCM equation.

GCF(39900,39910) = 10
LCM(39900,39910) = ( 39900 × 39910) / 10
LCM(39900,39910) = 1592409000 / 10
LCM(39900,39910) = 159240900

Least Common Multiple (LCM) of 39900 and 39910 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39900 and 39910. First we will calculate the prime factors of 39900 and 39910.

Prime Factorization of 39900

Prime Factorization of 39910

Now multiplying the highest exponent prime factors to calculate the LCM of 39900 and 39910.

LCM(39900,39910) = 2² × 3¹ × 5² × 7¹ × 19¹ × 13¹ × 307¹
LCM(39900,39910) = 159240900