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What is the Least Common Multiple of 33981 and 33993?

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 33993 is 385038711.

LCM(33981,33993) = 385038711

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Least Common Multiple of 33981 and 33993 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 33993, than apply into the LCM equation.

GCF(33981,33993) = 3
LCM(33981,33993) = ( 33981 × 33993) / 3
LCM(33981,33993) = 1155116133 / 3
LCM(33981,33993) = 385038711

Least Common Multiple (LCM) of 33981 and 33993 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33981 and 33993. First we will calculate the prime factors of 33981 and 33993.

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 33993

Prime factors of 33993 are 3, 1259. Prime factorization of 33993 in exponential form is:

33993 = 33 × 12591

Now multiplying the highest exponent prime factors to calculate the LCM of 33981 and 33993.

LCM(33981,33993) = 33 × 471 × 2411 × 12591
LCM(33981,33993) = 385038711