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What is the Least Common Multiple of 69855 and 69872?

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 69855 and 69872 is 4880908560.

LCM(69855,69872) = 4880908560

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Least Common Multiple of 69855 and 69872 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69855 and 69872, than apply into the LCM equation.

GCF(69855,69872) = 1
LCM(69855,69872) = ( 69855 × 69872) / 1
LCM(69855,69872) = 4880908560 / 1
LCM(69855,69872) = 4880908560

Least Common Multiple (LCM) of 69855 and 69872 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69855 and 69872. First we will calculate the prime factors of 69855 and 69872.

Prime Factorization of 69855

Prime factors of 69855 are 3, 5, 4657. Prime factorization of 69855 in exponential form is:

69855 = 31 × 51 × 46571

Prime Factorization of 69872

Prime factors of 69872 are 2, 11, 397. Prime factorization of 69872 in exponential form is:

69872 = 24 × 111 × 3971

Now multiplying the highest exponent prime factors to calculate the LCM of 69855 and 69872.

LCM(69855,69872) = 31 × 51 × 46571 × 24 × 111 × 3971
LCM(69855,69872) = 4880908560