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What is the Least Common Multiple of 11645 and 11657?

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 11645 and 11657 is 135745765.

LCM(11645,11657) = 135745765

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Least Common Multiple of 11645 and 11657 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11645 and 11657, than apply into the LCM equation.

GCF(11645,11657) = 1
LCM(11645,11657) = ( 11645 × 11657) / 1
LCM(11645,11657) = 135745765 / 1
LCM(11645,11657) = 135745765

Least Common Multiple (LCM) of 11645 and 11657 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11645 and 11657. First we will calculate the prime factors of 11645 and 11657.

Prime Factorization of 11645

Prime factors of 11645 are 5, 17, 137. Prime factorization of 11645 in exponential form is:

11645 = 51 × 171 × 1371

Prime Factorization of 11657

Prime factors of 11657 are 11657. Prime factorization of 11657 in exponential form is:

11657 = 116571

Now multiplying the highest exponent prime factors to calculate the LCM of 11645 and 11657.

LCM(11645,11657) = 51 × 171 × 1371 × 116571
LCM(11645,11657) = 135745765