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What is the Least Common Multiple of 28278 and 28294?

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 28278 and 28294 is 400048866.

LCM(28278,28294) = 400048866

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Least Common Multiple of 28278 and 28294 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28278 and 28294, than apply into the LCM equation.

GCF(28278,28294) = 2
LCM(28278,28294) = ( 28278 × 28294) / 2
LCM(28278,28294) = 800097732 / 2
LCM(28278,28294) = 400048866

Least Common Multiple (LCM) of 28278 and 28294 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28278 and 28294. First we will calculate the prime factors of 28278 and 28294.

Prime Factorization of 28278

Prime factors of 28278 are 2, 3, 1571. Prime factorization of 28278 in exponential form is:

28278 = 21 × 32 × 15711

Prime Factorization of 28294

Prime factors of 28294 are 2, 7, 43, 47. Prime factorization of 28294 in exponential form is:

28294 = 21 × 71 × 431 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 28278 and 28294.

LCM(28278,28294) = 21 × 32 × 15711 × 71 × 431 × 471
LCM(28278,28294) = 400048866