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What is the Least Common Multiple of 76431 and 76439?

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 76431 and 76439 is 5842309209.

LCM(76431,76439) = 5842309209

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Least Common Multiple of 76431 and 76439 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76431 and 76439, than apply into the LCM equation.

GCF(76431,76439) = 1
LCM(76431,76439) = ( 76431 × 76439) / 1
LCM(76431,76439) = 5842309209 / 1
LCM(76431,76439) = 5842309209

Least Common Multiple (LCM) of 76431 and 76439 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76431 and 76439. First we will calculate the prime factors of 76431 and 76439.

Prime Factorization of 76431

Prime factors of 76431 are 3, 73, 349. Prime factorization of 76431 in exponential form is:

76431 = 31 × 731 × 3491

Prime Factorization of 76439

Prime factors of 76439 are 11, 6949. Prime factorization of 76439 in exponential form is:

76439 = 111 × 69491

Now multiplying the highest exponent prime factors to calculate the LCM of 76431 and 76439.

LCM(76431,76439) = 31 × 731 × 3491 × 111 × 69491
LCM(76431,76439) = 5842309209