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What is the Least Common Multiple of 17906 and 17913?

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 17906 and 17913 is 45821454.

LCM(17906,17913) = 45821454

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Least Common Multiple of 17906 and 17913 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17906 and 17913, than apply into the LCM equation.

GCF(17906,17913) = 7
LCM(17906,17913) = ( 17906 × 17913) / 7
LCM(17906,17913) = 320750178 / 7
LCM(17906,17913) = 45821454

Least Common Multiple (LCM) of 17906 and 17913 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17906 and 17913. First we will calculate the prime factors of 17906 and 17913.

Prime Factorization of 17906

Prime factors of 17906 are 2, 7, 1279. Prime factorization of 17906 in exponential form is:

17906 = 21 × 71 × 12791

Prime Factorization of 17913

Prime factors of 17913 are 3, 7, 853. Prime factorization of 17913 in exponential form is:

17913 = 31 × 71 × 8531

Now multiplying the highest exponent prime factors to calculate the LCM of 17906 and 17913.

LCM(17906,17913) = 21 × 71 × 12791 × 31 × 8531
LCM(17906,17913) = 45821454