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What is the Least Common Multiple of 8422 and 8439?

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 8422 and 8439 is 71073258.

LCM(8422,8439) = 71073258

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Least Common Multiple of 8422 and 8439 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8422 and 8439, than apply into the LCM equation.

GCF(8422,8439) = 1
LCM(8422,8439) = ( 8422 × 8439) / 1
LCM(8422,8439) = 71073258 / 1
LCM(8422,8439) = 71073258

Least Common Multiple (LCM) of 8422 and 8439 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8422 and 8439. First we will calculate the prime factors of 8422 and 8439.

Prime Factorization of 8422

Prime factors of 8422 are 2, 4211. Prime factorization of 8422 in exponential form is:

8422 = 21 × 42111

Prime Factorization of 8439

Prime factors of 8439 are 3, 29, 97. Prime factorization of 8439 in exponential form is:

8439 = 31 × 291 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 8422 and 8439.

LCM(8422,8439) = 21 × 42111 × 31 × 291 × 971
LCM(8422,8439) = 71073258