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What is the Least Common Multiple of 11518 and 11538?

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 11518 and 11538 is 66447342.

LCM(11518,11538) = 66447342

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Least Common Multiple of 11518 and 11538 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11518 and 11538, than apply into the LCM equation.

GCF(11518,11538) = 2
LCM(11518,11538) = ( 11518 × 11538) / 2
LCM(11518,11538) = 132894684 / 2
LCM(11518,11538) = 66447342

Least Common Multiple (LCM) of 11518 and 11538 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11518 and 11538. First we will calculate the prime factors of 11518 and 11538.

Prime Factorization of 11518

Prime factors of 11518 are 2, 13, 443. Prime factorization of 11518 in exponential form is:

11518 = 21 × 131 × 4431

Prime Factorization of 11538

Prime factors of 11538 are 2, 3, 641. Prime factorization of 11538 in exponential form is:

11538 = 21 × 32 × 6411

Now multiplying the highest exponent prime factors to calculate the LCM of 11518 and 11538.

LCM(11518,11538) = 21 × 131 × 4431 × 32 × 6411
LCM(11518,11538) = 66447342