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What is the Least Common Multiple of 8474 and 8491?

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 8474 and 8491 is 71952734.

LCM(8474,8491) = 71952734

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Least Common Multiple of 8474 and 8491 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8474 and 8491, than apply into the LCM equation.

GCF(8474,8491) = 1
LCM(8474,8491) = ( 8474 × 8491) / 1
LCM(8474,8491) = 71952734 / 1
LCM(8474,8491) = 71952734

Least Common Multiple (LCM) of 8474 and 8491 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8474 and 8491. First we will calculate the prime factors of 8474 and 8491.

Prime Factorization of 8474

Prime factors of 8474 are 2, 19, 223. Prime factorization of 8474 in exponential form is:

8474 = 21 × 191 × 2231

Prime Factorization of 8491

Prime factors of 8491 are 7, 1213. Prime factorization of 8491 in exponential form is:

8491 = 71 × 12131

Now multiplying the highest exponent prime factors to calculate the LCM of 8474 and 8491.

LCM(8474,8491) = 21 × 191 × 2231 × 71 × 12131
LCM(8474,8491) = 71952734