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What is the Least Common Multiple of 84432 and 84448?

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 84432 and 84448 is 445632096.

LCM(84432,84448) = 445632096

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Least Common Multiple of 84432 and 84448 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84432 and 84448, than apply into the LCM equation.

GCF(84432,84448) = 16
LCM(84432,84448) = ( 84432 × 84448) / 16
LCM(84432,84448) = 7130113536 / 16
LCM(84432,84448) = 445632096

Least Common Multiple (LCM) of 84432 and 84448 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84432 and 84448. First we will calculate the prime factors of 84432 and 84448.

Prime Factorization of 84432

Prime factors of 84432 are 2, 3, 1759. Prime factorization of 84432 in exponential form is:

84432 = 24 × 31 × 17591

Prime Factorization of 84448

Prime factors of 84448 are 2, 7, 13, 29. Prime factorization of 84448 in exponential form is:

84448 = 25 × 71 × 131 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 84432 and 84448.

LCM(84432,84448) = 25 × 31 × 17591 × 71 × 131 × 291
LCM(84432,84448) = 445632096