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What is the Least Common Multiple of 84618 and 84636?

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 84618 and 84636 is 397873836.

LCM(84618,84636) = 397873836

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Least Common Multiple of 84618 and 84636 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84618 and 84636, than apply into the LCM equation.

GCF(84618,84636) = 18
LCM(84618,84636) = ( 84618 × 84636) / 18
LCM(84618,84636) = 7161729048 / 18
LCM(84618,84636) = 397873836

Least Common Multiple (LCM) of 84618 and 84636 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84618 and 84636. First we will calculate the prime factors of 84618 and 84636.

Prime Factorization of 84618

Prime factors of 84618 are 2, 3, 1567. Prime factorization of 84618 in exponential form is:

84618 = 21 × 33 × 15671

Prime Factorization of 84636

Prime factors of 84636 are 2, 3, 2351. Prime factorization of 84636 in exponential form is:

84636 = 22 × 32 × 23511

Now multiplying the highest exponent prime factors to calculate the LCM of 84618 and 84636.

LCM(84618,84636) = 22 × 33 × 15671 × 23511
LCM(84618,84636) = 397873836