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What is the Least Common Multiple of 11765 and 11780?

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 11765 and 11780 is 27718340.

LCM(11765,11780) = 27718340

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Least Common Multiple of 11765 and 11780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11765 and 11780, than apply into the LCM equation.

GCF(11765,11780) = 5
LCM(11765,11780) = ( 11765 × 11780) / 5
LCM(11765,11780) = 138591700 / 5
LCM(11765,11780) = 27718340

Least Common Multiple (LCM) of 11765 and 11780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11765 and 11780. First we will calculate the prime factors of 11765 and 11780.

Prime Factorization of 11765

Prime factors of 11765 are 5, 13, 181. Prime factorization of 11765 in exponential form is:

11765 = 51 × 131 × 1811

Prime Factorization of 11780

Prime factors of 11780 are 2, 5, 19, 31. Prime factorization of 11780 in exponential form is:

11780 = 22 × 51 × 191 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 11765 and 11780.

LCM(11765,11780) = 51 × 131 × 1811 × 22 × 191 × 311
LCM(11765,11780) = 27718340