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What is the Least Common Multiple of 81587 and 81600?

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 81587 and 81600 is 6657499200.

LCM(81587,81600) = 6657499200

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Least Common Multiple of 81587 and 81600 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81587 and 81600, than apply into the LCM equation.

GCF(81587,81600) = 1
LCM(81587,81600) = ( 81587 × 81600) / 1
LCM(81587,81600) = 6657499200 / 1
LCM(81587,81600) = 6657499200

Least Common Multiple (LCM) of 81587 and 81600 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81587 and 81600. First we will calculate the prime factors of 81587 and 81600.

Prime Factorization of 81587

Prime factors of 81587 are 11, 7417. Prime factorization of 81587 in exponential form is:

81587 = 111 × 74171

Prime Factorization of 81600

Prime factors of 81600 are 2, 3, 5, 17. Prime factorization of 81600 in exponential form is:

81600 = 26 × 31 × 52 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 81587 and 81600.

LCM(81587,81600) = 111 × 74171 × 26 × 31 × 52 × 171
LCM(81587,81600) = 6657499200