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What is the Least Common Multiple of 11866 and 11880?

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 11866 and 11880 is 70484040.

LCM(11866,11880) = 70484040

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Least Common Multiple of 11866 and 11880 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11866 and 11880, than apply into the LCM equation.

GCF(11866,11880) = 2
LCM(11866,11880) = ( 11866 × 11880) / 2
LCM(11866,11880) = 140968080 / 2
LCM(11866,11880) = 70484040

Least Common Multiple (LCM) of 11866 and 11880 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11866 and 11880. First we will calculate the prime factors of 11866 and 11880.

Prime Factorization of 11866

Prime factors of 11866 are 2, 17, 349. Prime factorization of 11866 in exponential form is:

11866 = 21 × 171 × 3491

Prime Factorization of 11880

Prime factors of 11880 are 2, 3, 5, 11. Prime factorization of 11880 in exponential form is:

11880 = 23 × 33 × 51 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 11866 and 11880.

LCM(11866,11880) = 23 × 171 × 3491 × 33 × 51 × 111
LCM(11866,11880) = 70484040