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What is the Least Common Multiple of 84640 and 84652?

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 84640 and 84652 is 1791236320.

LCM(84640,84652) = 1791236320

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Least Common Multiple of 84640 and 84652 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84640 and 84652, than apply into the LCM equation.

GCF(84640,84652) = 4
LCM(84640,84652) = ( 84640 × 84652) / 4
LCM(84640,84652) = 7164945280 / 4
LCM(84640,84652) = 1791236320

Least Common Multiple (LCM) of 84640 and 84652 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84640 and 84652. First we will calculate the prime factors of 84640 and 84652.

Prime Factorization of 84640

Prime factors of 84640 are 2, 5, 23. Prime factorization of 84640 in exponential form is:

84640 = 25 × 51 × 232

Prime Factorization of 84652

Prime factors of 84652 are 2, 21163. Prime factorization of 84652 in exponential form is:

84652 = 22 × 211631

Now multiplying the highest exponent prime factors to calculate the LCM of 84640 and 84652.

LCM(84640,84652) = 25 × 51 × 232 × 211631
LCM(84640,84652) = 1791236320