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What is the Least Common Multiple of 27756 and 27770?

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 27756 and 27770 is 385392060.

LCM(27756,27770) = 385392060

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Least Common Multiple of 27756 and 27770 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27756 and 27770, than apply into the LCM equation.

GCF(27756,27770) = 2
LCM(27756,27770) = ( 27756 × 27770) / 2
LCM(27756,27770) = 770784120 / 2
LCM(27756,27770) = 385392060

Least Common Multiple (LCM) of 27756 and 27770 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27756 and 27770. First we will calculate the prime factors of 27756 and 27770.

Prime Factorization of 27756

Prime factors of 27756 are 2, 3, 257. Prime factorization of 27756 in exponential form is:

27756 = 22 × 33 × 2571

Prime Factorization of 27770

Prime factors of 27770 are 2, 5, 2777. Prime factorization of 27770 in exponential form is:

27770 = 21 × 51 × 27771

Now multiplying the highest exponent prime factors to calculate the LCM of 27756 and 27770.

LCM(27756,27770) = 22 × 33 × 2571 × 51 × 27771
LCM(27756,27770) = 385392060