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What is the Least Common Multiple of 28981 and 28994?

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 28981 and 28994 is 840275114.

LCM(28981,28994) = 840275114

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Least Common Multiple of 28981 and 28994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28981 and 28994, than apply into the LCM equation.

GCF(28981,28994) = 1
LCM(28981,28994) = ( 28981 × 28994) / 1
LCM(28981,28994) = 840275114 / 1
LCM(28981,28994) = 840275114

Least Common Multiple (LCM) of 28981 and 28994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28981 and 28994. First we will calculate the prime factors of 28981 and 28994.

Prime Factorization of 28981

Prime factors of 28981 are 73, 397. Prime factorization of 28981 in exponential form is:

28981 = 731 × 3971

Prime Factorization of 28994

Prime factors of 28994 are 2, 7, 19, 109. Prime factorization of 28994 in exponential form is:

28994 = 21 × 71 × 191 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 28981 and 28994.

LCM(28981,28994) = 731 × 3971 × 21 × 71 × 191 × 1091
LCM(28981,28994) = 840275114