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What is the Least Common Multiple of 33978 and 33987?

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 33978 and 33987 is 384936762.

LCM(33978,33987) = 384936762

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Least Common Multiple of 33978 and 33987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33978 and 33987, than apply into the LCM equation.

GCF(33978,33987) = 3
LCM(33978,33987) = ( 33978 × 33987) / 3
LCM(33978,33987) = 1154810286 / 3
LCM(33978,33987) = 384936762

Least Common Multiple (LCM) of 33978 and 33987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33978 and 33987. First we will calculate the prime factors of 33978 and 33987.

Prime Factorization of 33978

Prime factors of 33978 are 2, 3, 7, 809. Prime factorization of 33978 in exponential form is:

33978 = 21 × 31 × 71 × 8091

Prime Factorization of 33987

Prime factors of 33987 are 3, 11329. Prime factorization of 33987 in exponential form is:

33987 = 31 × 113291

Now multiplying the highest exponent prime factors to calculate the LCM of 33978 and 33987.

LCM(33978,33987) = 21 × 31 × 71 × 8091 × 113291
LCM(33978,33987) = 384936762