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What is the Least Common Multiple of 12800 and 12813?

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 12800 and 12813 is 164006400.

LCM(12800,12813) = 164006400

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Least Common Multiple of 12800 and 12813 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12800 and 12813, than apply into the LCM equation.

GCF(12800,12813) = 1
LCM(12800,12813) = ( 12800 × 12813) / 1
LCM(12800,12813) = 164006400 / 1
LCM(12800,12813) = 164006400

Least Common Multiple (LCM) of 12800 and 12813 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12800 and 12813. First we will calculate the prime factors of 12800 and 12813.

Prime Factorization of 12800

Prime factors of 12800 are 2, 5. Prime factorization of 12800 in exponential form is:

12800 = 29 × 52

Prime Factorization of 12813

Prime factors of 12813 are 3, 4271. Prime factorization of 12813 in exponential form is:

12813 = 31 × 42711

Now multiplying the highest exponent prime factors to calculate the LCM of 12800 and 12813.

LCM(12800,12813) = 29 × 52 × 31 × 42711
LCM(12800,12813) = 164006400