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What is the Least Common Multiple of 8474 and 8485?

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 8485 is 71901890.

LCM(8474,8485) = 71901890

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Least Common Multiple of 8474 and 8485 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 8485, than apply into the LCM equation.

GCF(8474,8485) = 1
LCM(8474,8485) = ( 8474 × 8485) / 1
LCM(8474,8485) = 71901890 / 1
LCM(8474,8485) = 71901890

Least Common Multiple (LCM) of 8474 and 8485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8474 and 8485. First we will calculate the prime factors of 8474 and 8485.

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 8485

Prime factors of 8485 are 5, 1697. Prime factorization of 8485 in exponential form is:

8485 = 51 × 16971

Now multiplying the highest exponent prime factors to calculate the LCM of 8474 and 8485.

LCM(8474,8485) = 21 × 191 × 2231 × 51 × 16971
LCM(8474,8485) = 71901890