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What is the Least Common Multiple of 30240 and 30254?

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 30240 and 30254 is 65348640.

LCM(30240,30254) = 65348640

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Least Common Multiple of 30240 and 30254 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30240 and 30254, than apply into the LCM equation.

GCF(30240,30254) = 14
LCM(30240,30254) = ( 30240 × 30254) / 14
LCM(30240,30254) = 914880960 / 14
LCM(30240,30254) = 65348640

Least Common Multiple (LCM) of 30240 and 30254 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30240 and 30254. First we will calculate the prime factors of 30240 and 30254.

Prime Factorization of 30240

Prime factors of 30240 are 2, 3, 5, 7. Prime factorization of 30240 in exponential form is:

30240 = 25 × 33 × 51 × 71

Prime Factorization of 30254

Prime factors of 30254 are 2, 7, 2161. Prime factorization of 30254 in exponential form is:

30254 = 21 × 71 × 21611

Now multiplying the highest exponent prime factors to calculate the LCM of 30240 and 30254.

LCM(30240,30254) = 25 × 33 × 51 × 71 × 21611
LCM(30240,30254) = 65348640