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What is the Least Common Multiple of 80724 and 80742?

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 80724 and 80742 is 1086302868.

LCM(80724,80742) = 1086302868

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Least Common Multiple of 80724 and 80742 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80724 and 80742, than apply into the LCM equation.

GCF(80724,80742) = 6
LCM(80724,80742) = ( 80724 × 80742) / 6
LCM(80724,80742) = 6517817208 / 6
LCM(80724,80742) = 1086302868

Least Common Multiple (LCM) of 80724 and 80742 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80724 and 80742. First we will calculate the prime factors of 80724 and 80742.

Prime Factorization of 80724

Prime factors of 80724 are 2, 3, 7, 31. Prime factorization of 80724 in exponential form is:

80724 = 22 × 31 × 71 × 312

Prime Factorization of 80742

Prime factors of 80742 are 2, 3, 13457. Prime factorization of 80742 in exponential form is:

80742 = 21 × 31 × 134571

Now multiplying the highest exponent prime factors to calculate the LCM of 80724 and 80742.

LCM(80724,80742) = 22 × 31 × 71 × 312 × 134571
LCM(80724,80742) = 1086302868