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What is the Least Common Multiple of 17649 and 17658?

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 17649 and 17658 is 34627338.

LCM(17649,17658) = 34627338

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Least Common Multiple of 17649 and 17658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17649 and 17658, than apply into the LCM equation.

GCF(17649,17658) = 9
LCM(17649,17658) = ( 17649 × 17658) / 9
LCM(17649,17658) = 311646042 / 9
LCM(17649,17658) = 34627338

Least Common Multiple (LCM) of 17649 and 17658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17649 and 17658. First we will calculate the prime factors of 17649 and 17658.

Prime Factorization of 17649

Prime factors of 17649 are 3, 37, 53. Prime factorization of 17649 in exponential form is:

17649 = 32 × 371 × 531

Prime Factorization of 17658

Prime factors of 17658 are 2, 3, 109. Prime factorization of 17658 in exponential form is:

17658 = 21 × 34 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 17649 and 17658.

LCM(17649,17658) = 34 × 371 × 531 × 21 × 1091
LCM(17649,17658) = 34627338