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What is the Least Common Multiple of 28791 and 28808?

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 28791 and 28808 is 829411128.

LCM(28791,28808) = 829411128

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Least Common Multiple of 28791 and 28808 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28791 and 28808, than apply into the LCM equation.

GCF(28791,28808) = 1
LCM(28791,28808) = ( 28791 × 28808) / 1
LCM(28791,28808) = 829411128 / 1
LCM(28791,28808) = 829411128

Least Common Multiple (LCM) of 28791 and 28808 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28791 and 28808. First we will calculate the prime factors of 28791 and 28808.

Prime Factorization of 28791

Prime factors of 28791 are 3, 7, 457. Prime factorization of 28791 in exponential form is:

28791 = 32 × 71 × 4571

Prime Factorization of 28808

Prime factors of 28808 are 2, 13, 277. Prime factorization of 28808 in exponential form is:

28808 = 23 × 131 × 2771

Now multiplying the highest exponent prime factors to calculate the LCM of 28791 and 28808.

LCM(28791,28808) = 32 × 71 × 4571 × 23 × 131 × 2771
LCM(28791,28808) = 829411128