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What is the Least Common Multiple of 17800 and 17812?

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 17800 and 17812 is 79263400.

LCM(17800,17812) = 79263400

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Least Common Multiple of 17800 and 17812 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17800 and 17812, than apply into the LCM equation.

GCF(17800,17812) = 4
LCM(17800,17812) = ( 17800 × 17812) / 4
LCM(17800,17812) = 317053600 / 4
LCM(17800,17812) = 79263400

Least Common Multiple (LCM) of 17800 and 17812 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17800 and 17812. First we will calculate the prime factors of 17800 and 17812.

Prime Factorization of 17800

Prime factors of 17800 are 2, 5, 89. Prime factorization of 17800 in exponential form is:

17800 = 23 × 52 × 891

Prime Factorization of 17812

Prime factors of 17812 are 2, 61, 73. Prime factorization of 17812 in exponential form is:

17812 = 22 × 611 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 17800 and 17812.

LCM(17800,17812) = 23 × 52 × 891 × 611 × 731
LCM(17800,17812) = 79263400