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What is the Least Common Multiple of 69740 and 69744?

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 69740 and 69744 is 1215986640.

LCM(69740,69744) = 1215986640

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Least Common Multiple of 69740 and 69744 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69740 and 69744, than apply into the LCM equation.

GCF(69740,69744) = 4
LCM(69740,69744) = ( 69740 × 69744) / 4
LCM(69740,69744) = 4863946560 / 4
LCM(69740,69744) = 1215986640

Least Common Multiple (LCM) of 69740 and 69744 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69740 and 69744. First we will calculate the prime factors of 69740 and 69744.

Prime Factorization of 69740

Prime factors of 69740 are 2, 5, 11, 317. Prime factorization of 69740 in exponential form is:

69740 = 22 × 51 × 111 × 3171

Prime Factorization of 69744

Prime factors of 69744 are 2, 3, 1453. Prime factorization of 69744 in exponential form is:

69744 = 24 × 31 × 14531

Now multiplying the highest exponent prime factors to calculate the LCM of 69740 and 69744.

LCM(69740,69744) = 24 × 51 × 111 × 3171 × 31 × 14531
LCM(69740,69744) = 1215986640