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What is the Least Common Multiple of 87981 and 87986?

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 87981 and 87986 is 7741096266.

LCM(87981,87986) = 7741096266

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Least Common Multiple of 87981 and 87986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87981 and 87986, than apply into the LCM equation.

GCF(87981,87986) = 1
LCM(87981,87986) = ( 87981 × 87986) / 1
LCM(87981,87986) = 7741096266 / 1
LCM(87981,87986) = 7741096266

Least Common Multiple (LCM) of 87981 and 87986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87981 and 87986. First we will calculate the prime factors of 87981 and 87986.

Prime Factorization of 87981

Prime factors of 87981 are 3, 29327. Prime factorization of 87981 in exponential form is:

87981 = 31 × 293271

Prime Factorization of 87986

Prime factors of 87986 are 2, 29, 37, 41. Prime factorization of 87986 in exponential form is:

87986 = 21 × 291 × 371 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 87981 and 87986.

LCM(87981,87986) = 31 × 293271 × 21 × 291 × 371 × 411
LCM(87981,87986) = 7741096266