What is the Least Common Multiple of 19724 and 19744?

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 19724 and 19744 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19724 and 19744, than apply into the LCM equation.

GCF(19724,19744) = 4
LCM(19724,19744) = ( 19724 × 19744) / 4
LCM(19724,19744) = 389430656 / 4
LCM(19724,19744) = 97357664

Least Common Multiple (LCM) of 19724 and 19744 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19724 and 19744. First we will calculate the prime factors of 19724 and 19744.

Prime Factorization of 19724

Prime Factorization of 19744

Now multiplying the highest exponent prime factors to calculate the LCM of 19724 and 19744.

LCM(19724,19744) = 2⁵ × 4931¹ × 617¹
LCM(19724,19744) = 97357664