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What is the Least Common Multiple of 17685 and 17703?

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 17685 and 17703 is 34786395.

LCM(17685,17703) = 34786395

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Least Common Multiple of 17685 and 17703 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17685 and 17703, than apply into the LCM equation.

GCF(17685,17703) = 9
LCM(17685,17703) = ( 17685 × 17703) / 9
LCM(17685,17703) = 313077555 / 9
LCM(17685,17703) = 34786395

Least Common Multiple (LCM) of 17685 and 17703 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17685 and 17703. First we will calculate the prime factors of 17685 and 17703.

Prime Factorization of 17685

Prime factors of 17685 are 3, 5, 131. Prime factorization of 17685 in exponential form is:

17685 = 33 × 51 × 1311

Prime Factorization of 17703

Prime factors of 17703 are 3, 7, 281. Prime factorization of 17703 in exponential form is:

17703 = 32 × 71 × 2811

Now multiplying the highest exponent prime factors to calculate the LCM of 17685 and 17703.

LCM(17685,17703) = 33 × 51 × 1311 × 71 × 2811
LCM(17685,17703) = 34786395