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What is the Least Common Multiple of 79410 and 79418?

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 79410 and 79418 is 3153291690.

LCM(79410,79418) = 3153291690

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Least Common Multiple of 79410 and 79418 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79410 and 79418, than apply into the LCM equation.

GCF(79410,79418) = 2
LCM(79410,79418) = ( 79410 × 79418) / 2
LCM(79410,79418) = 6306583380 / 2
LCM(79410,79418) = 3153291690

Least Common Multiple (LCM) of 79410 and 79418 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79410 and 79418. First we will calculate the prime factors of 79410 and 79418.

Prime Factorization of 79410

Prime factors of 79410 are 2, 3, 5, 2647. Prime factorization of 79410 in exponential form is:

79410 = 21 × 31 × 51 × 26471

Prime Factorization of 79418

Prime factors of 79418 are 2, 39709. Prime factorization of 79418 in exponential form is:

79418 = 21 × 397091

Now multiplying the highest exponent prime factors to calculate the LCM of 79410 and 79418.

LCM(79410,79418) = 21 × 31 × 51 × 26471 × 397091
LCM(79410,79418) = 3153291690