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What is the Least Common Multiple of 17901 and 17917?

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 17901 and 17917 is 320732217.

LCM(17901,17917) = 320732217

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Least Common Multiple of 17901 and 17917 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17901 and 17917, than apply into the LCM equation.

GCF(17901,17917) = 1
LCM(17901,17917) = ( 17901 × 17917) / 1
LCM(17901,17917) = 320732217 / 1
LCM(17901,17917) = 320732217

Least Common Multiple (LCM) of 17901 and 17917 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17901 and 17917. First we will calculate the prime factors of 17901 and 17917.

Prime Factorization of 17901

Prime factors of 17901 are 3, 13, 17. Prime factorization of 17901 in exponential form is:

17901 = 34 × 131 × 171

Prime Factorization of 17917

Prime factors of 17917 are 19, 23, 41. Prime factorization of 17917 in exponential form is:

17917 = 191 × 231 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 17901 and 17917.

LCM(17901,17917) = 34 × 131 × 171 × 191 × 231 × 411
LCM(17901,17917) = 320732217