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What is the Least Common Multiple of 71916 and 71929?

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 71916 and 71929 is 397911228.

LCM(71916,71929) = 397911228

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Least Common Multiple of 71916 and 71929 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71916 and 71929, than apply into the LCM equation.

GCF(71916,71929) = 13
LCM(71916,71929) = ( 71916 × 71929) / 13
LCM(71916,71929) = 5172845964 / 13
LCM(71916,71929) = 397911228

Least Common Multiple (LCM) of 71916 and 71929 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71916 and 71929. First we will calculate the prime factors of 71916 and 71929.

Prime Factorization of 71916

Prime factors of 71916 are 2, 3, 13, 461. Prime factorization of 71916 in exponential form is:

71916 = 22 × 31 × 131 × 4611

Prime Factorization of 71929

Prime factors of 71929 are 11, 13, 503. Prime factorization of 71929 in exponential form is:

71929 = 111 × 131 × 5031

Now multiplying the highest exponent prime factors to calculate the LCM of 71916 and 71929.

LCM(71916,71929) = 22 × 31 × 131 × 4611 × 111 × 5031
LCM(71916,71929) = 397911228