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What is the Least Common Multiple of 84320 and 84336?

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 84320 and 84336 is 444450720.

LCM(84320,84336) = 444450720

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Least Common Multiple of 84320 and 84336 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84320 and 84336, than apply into the LCM equation.

GCF(84320,84336) = 16
LCM(84320,84336) = ( 84320 × 84336) / 16
LCM(84320,84336) = 7111211520 / 16
LCM(84320,84336) = 444450720

Least Common Multiple (LCM) of 84320 and 84336 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84320 and 84336. First we will calculate the prime factors of 84320 and 84336.

Prime Factorization of 84320

Prime factors of 84320 are 2, 5, 17, 31. Prime factorization of 84320 in exponential form is:

84320 = 25 × 51 × 171 × 311

Prime Factorization of 84336

Prime factors of 84336 are 2, 3, 7, 251. Prime factorization of 84336 in exponential form is:

84336 = 24 × 31 × 71 × 2511

Now multiplying the highest exponent prime factors to calculate the LCM of 84320 and 84336.

LCM(84320,84336) = 25 × 51 × 171 × 311 × 31 × 71 × 2511
LCM(84320,84336) = 444450720