What is the Least Common Multiple of 39947 and 39955?

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 39947 and 39955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39947 and 39955, than apply into the LCM equation.

GCF(39947,39955) = 1
LCM(39947,39955) = ( 39947 × 39955) / 1
LCM(39947,39955) = 1596082385 / 1
LCM(39947,39955) = 1596082385

Least Common Multiple (LCM) of 39947 and 39955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39947 and 39955. First we will calculate the prime factors of 39947 and 39955.

Prime Factorization of 39947

Prime Factorization of 39955

Now multiplying the highest exponent prime factors to calculate the LCM of 39947 and 39955.

LCM(39947,39955) = 43¹ × 929¹ × 5¹ × 61¹ × 131¹
LCM(39947,39955) = 1596082385