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What is the Least Common Multiple of 28917 and 28921?

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 28917 and 28921 is 836308557.

LCM(28917,28921) = 836308557

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Least Common Multiple of 28917 and 28921 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28917 and 28921, than apply into the LCM equation.

GCF(28917,28921) = 1
LCM(28917,28921) = ( 28917 × 28921) / 1
LCM(28917,28921) = 836308557 / 1
LCM(28917,28921) = 836308557

Least Common Multiple (LCM) of 28917 and 28921 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28917 and 28921. First we will calculate the prime factors of 28917 and 28921.

Prime Factorization of 28917

Prime factors of 28917 are 3, 7, 17. Prime factorization of 28917 in exponential form is:

28917 = 35 × 71 × 171

Prime Factorization of 28921

Prime factors of 28921 are 28921. Prime factorization of 28921 in exponential form is:

28921 = 289211

Now multiplying the highest exponent prime factors to calculate the LCM of 28917 and 28921.

LCM(28917,28921) = 35 × 71 × 171 × 289211
LCM(28917,28921) = 836308557