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What is the Least Common Multiple of 11981 and 11994?

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 11981 and 11994 is 143700114.

LCM(11981,11994) = 143700114

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Least Common Multiple of 11981 and 11994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11981 and 11994, than apply into the LCM equation.

GCF(11981,11994) = 1
LCM(11981,11994) = ( 11981 × 11994) / 1
LCM(11981,11994) = 143700114 / 1
LCM(11981,11994) = 143700114

Least Common Multiple (LCM) of 11981 and 11994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11981 and 11994. First we will calculate the prime factors of 11981 and 11994.

Prime Factorization of 11981

Prime factors of 11981 are 11981. Prime factorization of 11981 in exponential form is:

11981 = 119811

Prime Factorization of 11994

Prime factors of 11994 are 2, 3, 1999. Prime factorization of 11994 in exponential form is:

11994 = 21 × 31 × 19991

Now multiplying the highest exponent prime factors to calculate the LCM of 11981 and 11994.

LCM(11981,11994) = 119811 × 21 × 31 × 19991
LCM(11981,11994) = 143700114