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What is the Least Common Multiple of 64404 and 64420?

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 64404 and 64420 is 1037226420.

LCM(64404,64420) = 1037226420

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Least Common Multiple of 64404 and 64420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64404 and 64420, than apply into the LCM equation.

GCF(64404,64420) = 4
LCM(64404,64420) = ( 64404 × 64420) / 4
LCM(64404,64420) = 4148905680 / 4
LCM(64404,64420) = 1037226420

Least Common Multiple (LCM) of 64404 and 64420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64404 and 64420. First we will calculate the prime factors of 64404 and 64420.

Prime Factorization of 64404

Prime factors of 64404 are 2, 3, 1789. Prime factorization of 64404 in exponential form is:

64404 = 22 × 32 × 17891

Prime Factorization of 64420

Prime factors of 64420 are 2, 5, 3221. Prime factorization of 64420 in exponential form is:

64420 = 22 × 51 × 32211

Now multiplying the highest exponent prime factors to calculate the LCM of 64404 and 64420.

LCM(64404,64420) = 22 × 32 × 17891 × 51 × 32211
LCM(64404,64420) = 1037226420