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What is the Least Common Multiple of 8649 and 8658?

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 8649 and 8658 is 8320338.

LCM(8649,8658) = 8320338

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Least Common Multiple of 8649 and 8658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8649 and 8658, than apply into the LCM equation.

GCF(8649,8658) = 9
LCM(8649,8658) = ( 8649 × 8658) / 9
LCM(8649,8658) = 74883042 / 9
LCM(8649,8658) = 8320338

Least Common Multiple (LCM) of 8649 and 8658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8649 and 8658. First we will calculate the prime factors of 8649 and 8658.

Prime Factorization of 8649

Prime factors of 8649 are 3, 31. Prime factorization of 8649 in exponential form is:

8649 = 32 × 312

Prime Factorization of 8658

Prime factors of 8658 are 2, 3, 13, 37. Prime factorization of 8658 in exponential form is:

8658 = 21 × 32 × 131 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 8649 and 8658.

LCM(8649,8658) = 32 × 312 × 21 × 131 × 371
LCM(8649,8658) = 8320338