GCF and LCM Calculator Logo

What is the Least Common Multiple of 30724 and 30742?

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 (LCM) of 30724 and 30742 is 472258604.

LCM(30724,30742) = 472258604

LCM Calculator and
and

Least Common Multiple of 30724 and 30742 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30724 and 30742, than apply into the LCM equation.

GCF(30724,30742) = 2
LCM(30724,30742) = ( 30724 × 30742) / 2
LCM(30724,30742) = 944517208 / 2
LCM(30724,30742) = 472258604

Least Common Multiple (LCM) of 30724 and 30742 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30724 and 30742. First we will calculate the prime factors of 30724 and 30742.

Prime Factorization of 30724

Prime factors of 30724 are 2, 7681. Prime factorization of 30724 in exponential form is:

30724 = 22 × 76811

Prime Factorization of 30742

Prime factors of 30742 are 2, 19, 809. Prime factorization of 30742 in exponential form is:

30742 = 21 × 191 × 8091

Now multiplying the highest exponent prime factors to calculate the LCM of 30724 and 30742.

LCM(30724,30742) = 22 × 76811 × 191 × 8091
LCM(30724,30742) = 472258604