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What is the Least Common Multiple of 7416 and 7430?

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 7416 and 7430 is 27550440.

LCM(7416,7430) = 27550440

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Least Common Multiple of 7416 and 7430 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7416 and 7430, than apply into the LCM equation.

GCF(7416,7430) = 2
LCM(7416,7430) = ( 7416 × 7430) / 2
LCM(7416,7430) = 55100880 / 2
LCM(7416,7430) = 27550440

Least Common Multiple (LCM) of 7416 and 7430 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7416 and 7430. First we will calculate the prime factors of 7416 and 7430.

Prime Factorization of 7416

Prime factors of 7416 are 2, 3, 103. Prime factorization of 7416 in exponential form is:

7416 = 23 × 32 × 1031

Prime Factorization of 7430

Prime factors of 7430 are 2, 5, 743. Prime factorization of 7430 in exponential form is:

7430 = 21 × 51 × 7431

Now multiplying the highest exponent prime factors to calculate the LCM of 7416 and 7430.

LCM(7416,7430) = 23 × 32 × 1031 × 51 × 7431
LCM(7416,7430) = 27550440