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What is the Least Common Multiple of 11644 and 11661?

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 11644 and 11661 is 135780684.

LCM(11644,11661) = 135780684

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Least Common Multiple of 11644 and 11661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11644 and 11661, than apply into the LCM equation.

GCF(11644,11661) = 1
LCM(11644,11661) = ( 11644 × 11661) / 1
LCM(11644,11661) = 135780684 / 1
LCM(11644,11661) = 135780684

Least Common Multiple (LCM) of 11644 and 11661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11644 and 11661. First we will calculate the prime factors of 11644 and 11661.

Prime Factorization of 11644

Prime factors of 11644 are 2, 41, 71. Prime factorization of 11644 in exponential form is:

11644 = 22 × 411 × 711

Prime Factorization of 11661

Prime factors of 11661 are 3, 13, 23. Prime factorization of 11661 in exponential form is:

11661 = 31 × 132 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 11644 and 11661.

LCM(11644,11661) = 22 × 411 × 711 × 31 × 132 × 231
LCM(11644,11661) = 135780684