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What is the Least Common Multiple of 8431 and 8445?

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 8431 and 8445 is 71199795.

LCM(8431,8445) = 71199795

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Least Common Multiple of 8431 and 8445 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8431 and 8445, than apply into the LCM equation.

GCF(8431,8445) = 1
LCM(8431,8445) = ( 8431 × 8445) / 1
LCM(8431,8445) = 71199795 / 1
LCM(8431,8445) = 71199795

Least Common Multiple (LCM) of 8431 and 8445 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8431 and 8445. First we will calculate the prime factors of 8431 and 8445.

Prime Factorization of 8431

Prime factors of 8431 are 8431. Prime factorization of 8431 in exponential form is:

8431 = 84311

Prime Factorization of 8445

Prime factors of 8445 are 3, 5, 563. Prime factorization of 8445 in exponential form is:

8445 = 31 × 51 × 5631

Now multiplying the highest exponent prime factors to calculate the LCM of 8431 and 8445.

LCM(8431,8445) = 84311 × 31 × 51 × 5631
LCM(8431,8445) = 71199795