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What is the Least Common Multiple of 28783 and 28798?

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 28783 and 28798 is 828892834.

LCM(28783,28798) = 828892834

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Least Common Multiple of 28783 and 28798 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28783 and 28798, than apply into the LCM equation.

GCF(28783,28798) = 1
LCM(28783,28798) = ( 28783 × 28798) / 1
LCM(28783,28798) = 828892834 / 1
LCM(28783,28798) = 828892834

Least Common Multiple (LCM) of 28783 and 28798 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28783 and 28798. First we will calculate the prime factors of 28783 and 28798.

Prime Factorization of 28783

Prime factors of 28783 are 107, 269. Prime factorization of 28783 in exponential form is:

28783 = 1071 × 2691

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

Now multiplying the highest exponent prime factors to calculate the LCM of 28783 and 28798.

LCM(28783,28798) = 1071 × 2691 × 21 × 71 × 112 × 171
LCM(28783,28798) = 828892834