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What is the Least Common Multiple of 11561 and 11578?

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 11561 and 11578 is 133853258.

LCM(11561,11578) = 133853258

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Least Common Multiple of 11561 and 11578 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11561 and 11578, than apply into the LCM equation.

GCF(11561,11578) = 1
LCM(11561,11578) = ( 11561 × 11578) / 1
LCM(11561,11578) = 133853258 / 1
LCM(11561,11578) = 133853258

Least Common Multiple (LCM) of 11561 and 11578 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11561 and 11578. First we will calculate the prime factors of 11561 and 11578.

Prime Factorization of 11561

Prime factors of 11561 are 11, 1051. Prime factorization of 11561 in exponential form is:

11561 = 111 × 10511

Prime Factorization of 11578

Prime factors of 11578 are 2, 7, 827. Prime factorization of 11578 in exponential form is:

11578 = 21 × 71 × 8271

Now multiplying the highest exponent prime factors to calculate the LCM of 11561 and 11578.

LCM(11561,11578) = 111 × 10511 × 21 × 71 × 8271
LCM(11561,11578) = 133853258