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What is the Least Common Multiple of 27778 and 27786?

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 27778 and 27786 is 385919754.

LCM(27778,27786) = 385919754

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Least Common Multiple of 27778 and 27786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27778 and 27786, than apply into the LCM equation.

GCF(27778,27786) = 2
LCM(27778,27786) = ( 27778 × 27786) / 2
LCM(27778,27786) = 771839508 / 2
LCM(27778,27786) = 385919754

Least Common Multiple (LCM) of 27778 and 27786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27778 and 27786. First we will calculate the prime factors of 27778 and 27786.

Prime Factorization of 27778

Prime factors of 27778 are 2, 17, 19, 43. Prime factorization of 27778 in exponential form is:

27778 = 21 × 171 × 191 × 431

Prime Factorization of 27786

Prime factors of 27786 are 2, 3, 11, 421. Prime factorization of 27786 in exponential form is:

27786 = 21 × 31 × 111 × 4211

Now multiplying the highest exponent prime factors to calculate the LCM of 27778 and 27786.

LCM(27778,27786) = 21 × 171 × 191 × 431 × 31 × 111 × 4211
LCM(27778,27786) = 385919754