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What is the Least Common Multiple of 28798 and 28815?

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 28798 and 28815 is 48812610.

LCM(28798,28815) = 48812610

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Least Common Multiple of 28798 and 28815 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28798 and 28815, than apply into the LCM equation.

GCF(28798,28815) = 17
LCM(28798,28815) = ( 28798 × 28815) / 17
LCM(28798,28815) = 829814370 / 17
LCM(28798,28815) = 48812610

Least Common Multiple (LCM) of 28798 and 28815 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28798 and 28815. First we will calculate the prime factors of 28798 and 28815.

Prime Factorization of 28798

Prime factors of 28798 are 2, 7, 11, 17. Prime factorization of 28798 in exponential form is:

28798 = 21 × 71 × 112 × 171

Prime Factorization of 28815

Prime factors of 28815 are 3, 5, 17, 113. Prime factorization of 28815 in exponential form is:

28815 = 31 × 51 × 171 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 28798 and 28815.

LCM(28798,28815) = 21 × 71 × 112 × 171 × 31 × 51 × 1131
LCM(28798,28815) = 48812610