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What is the Least Common Multiple of 33981 and 33998?

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 33981 and 33998 is 1155286038.

LCM(33981,33998) = 1155286038

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Least Common Multiple of 33981 and 33998 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33981 and 33998, than apply into the LCM equation.

GCF(33981,33998) = 1
LCM(33981,33998) = ( 33981 × 33998) / 1
LCM(33981,33998) = 1155286038 / 1
LCM(33981,33998) = 1155286038

Least Common Multiple (LCM) of 33981 and 33998 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33981 and 33998. First we will calculate the prime factors of 33981 and 33998.

Prime Factorization of 33981

Prime factors of 33981 are 3, 47, 241. Prime factorization of 33981 in exponential form is:

33981 = 31 × 471 × 2411

Prime Factorization of 33998

Prime factors of 33998 are 2, 89, 191. Prime factorization of 33998 in exponential form is:

33998 = 21 × 891 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 33981 and 33998.

LCM(33981,33998) = 31 × 471 × 2411 × 21 × 891 × 1911
LCM(33981,33998) = 1155286038