What is the Least Common Multiple of 19663 and 19681?

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 19663 and 19681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19663 and 19681, than apply into the LCM equation.

GCF(19663,19681) = 1
LCM(19663,19681) = ( 19663 × 19681) / 1
LCM(19663,19681) = 386987503 / 1
LCM(19663,19681) = 386987503

Least Common Multiple (LCM) of 19663 and 19681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19663 and 19681. First we will calculate the prime factors of 19663 and 19681.

Prime Factorization of 19663

Prime Factorization of 19681

Now multiplying the highest exponent prime factors to calculate the LCM of 19663 and 19681.

LCM(19663,19681) = 7¹ × 53² × 19681¹
LCM(19663,19681) = 386987503