What is the Least Common Multiple of 19947 and 19963?

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 19947 and 19963 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19947 and 19963, than apply into the LCM equation.

GCF(19947,19963) = 1
LCM(19947,19963) = ( 19947 × 19963) / 1
LCM(19947,19963) = 398201961 / 1
LCM(19947,19963) = 398201961

Least Common Multiple (LCM) of 19947 and 19963 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19947 and 19963. First we will calculate the prime factors of 19947 and 19963.

Prime Factorization of 19947

Prime Factorization of 19963

Now multiplying the highest exponent prime factors to calculate the LCM of 19947 and 19963.

LCM(19947,19963) = 3¹ × 61¹ × 109¹ × 19963¹
LCM(19947,19963) = 398201961