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What is the Least Common Multiple of 67423 and 67431?

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 67423 and 67431 is 4546400313.

LCM(67423,67431) = 4546400313

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Least Common Multiple of 67423 and 67431 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67423 and 67431, than apply into the LCM equation.

GCF(67423,67431) = 1
LCM(67423,67431) = ( 67423 × 67431) / 1
LCM(67423,67431) = 4546400313 / 1
LCM(67423,67431) = 4546400313

Least Common Multiple (LCM) of 67423 and 67431 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67423 and 67431. First we will calculate the prime factors of 67423 and 67431.

Prime Factorization of 67423

Prime factors of 67423 are 191, 353. Prime factorization of 67423 in exponential form is:

67423 = 1911 × 3531

Prime Factorization of 67431

Prime factors of 67431 are 3, 7, 13, 19. Prime factorization of 67431 in exponential form is:

67431 = 31 × 71 × 132 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 67423 and 67431.

LCM(67423,67431) = 1911 × 3531 × 31 × 71 × 132 × 191
LCM(67423,67431) = 4546400313