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What is the Least Common Multiple of 8987 and 8991?

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 8987 and 8991 is 80802117.

LCM(8987,8991) = 80802117

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Least Common Multiple of 8987 and 8991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8987 and 8991, than apply into the LCM equation.

GCF(8987,8991) = 1
LCM(8987,8991) = ( 8987 × 8991) / 1
LCM(8987,8991) = 80802117 / 1
LCM(8987,8991) = 80802117

Least Common Multiple (LCM) of 8987 and 8991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8987 and 8991. First we will calculate the prime factors of 8987 and 8991.

Prime Factorization of 8987

Prime factors of 8987 are 11, 19, 43. Prime factorization of 8987 in exponential form is:

8987 = 111 × 191 × 431

Prime Factorization of 8991

Prime factors of 8991 are 3, 37. Prime factorization of 8991 in exponential form is:

8991 = 35 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 8987 and 8991.

LCM(8987,8991) = 111 × 191 × 431 × 35 × 371
LCM(8987,8991) = 80802117