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What is the Least Common Multiple of 3240 and 3258?

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 3240 and 3258 is 586440.

LCM(3240,3258) = 586440

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Least Common Multiple of 3240 and 3258 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3240 and 3258, than apply into the LCM equation.

GCF(3240,3258) = 18
LCM(3240,3258) = ( 3240 × 3258) / 18
LCM(3240,3258) = 10555920 / 18
LCM(3240,3258) = 586440

Least Common Multiple (LCM) of 3240 and 3258 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3240 and 3258. First we will calculate the prime factors of 3240 and 3258.

Prime Factorization of 3240

Prime factors of 3240 are 2, 3, 5. Prime factorization of 3240 in exponential form is:

3240 = 23 × 34 × 51

Prime Factorization of 3258

Prime factors of 3258 are 2, 3, 181. Prime factorization of 3258 in exponential form is:

3258 = 21 × 32 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 3240 and 3258.

LCM(3240,3258) = 23 × 34 × 51 × 1811
LCM(3240,3258) = 586440