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What is the Least Common Multiple of 71407 and 71424?

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 71407 and 71424 is 5100173568.

LCM(71407,71424) = 5100173568

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Least Common Multiple of 71407 and 71424 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71407 and 71424, than apply into the LCM equation.

GCF(71407,71424) = 1
LCM(71407,71424) = ( 71407 × 71424) / 1
LCM(71407,71424) = 5100173568 / 1
LCM(71407,71424) = 5100173568

Least Common Multiple (LCM) of 71407 and 71424 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71407 and 71424. First we will calculate the prime factors of 71407 and 71424.

Prime Factorization of 71407

Prime factors of 71407 are 7, 101. Prime factorization of 71407 in exponential form is:

71407 = 71 × 1012

Prime Factorization of 71424

Prime factors of 71424 are 2, 3, 31. Prime factorization of 71424 in exponential form is:

71424 = 28 × 32 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 71407 and 71424.

LCM(71407,71424) = 71 × 1012 × 28 × 32 × 311
LCM(71407,71424) = 5100173568