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What is the Least Common Multiple of 27778 and 27791?

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 27791 is 771978398.

LCM(27778,27791) = 771978398

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Least Common Multiple of 27778 and 27791 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 27791, than apply into the LCM equation.

GCF(27778,27791) = 1
LCM(27778,27791) = ( 27778 × 27791) / 1
LCM(27778,27791) = 771978398 / 1
LCM(27778,27791) = 771978398

Least Common Multiple (LCM) of 27778 and 27791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27778 and 27791. First we will calculate the prime factors of 27778 and 27791.

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 27791

Prime factors of 27791 are 27791. Prime factorization of 27791 in exponential form is:

27791 = 277911

Now multiplying the highest exponent prime factors to calculate the LCM of 27778 and 27791.

LCM(27778,27791) = 21 × 171 × 191 × 431 × 277911
LCM(27778,27791) = 771978398