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What is the Least Common Multiple of 27778 and 27787?

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 27787 is 771867286.

LCM(27778,27787) = 771867286

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Least Common Multiple of 27778 and 27787 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 27787, than apply into the LCM equation.

GCF(27778,27787) = 1
LCM(27778,27787) = ( 27778 × 27787) / 1
LCM(27778,27787) = 771867286 / 1
LCM(27778,27787) = 771867286

Least Common Multiple (LCM) of 27778 and 27787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27778 and 27787. First we will calculate the prime factors of 27778 and 27787.

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 27787

Prime factors of 27787 are 37, 751. Prime factorization of 27787 in exponential form is:

27787 = 371 × 7511

Now multiplying the highest exponent prime factors to calculate the LCM of 27778 and 27787.

LCM(27778,27787) = 21 × 171 × 191 × 431 × 371 × 7511
LCM(27778,27787) = 771867286