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What is the Least Common Multiple of 81906 and 81911?

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 81906 and 81911 is 6709002366.

LCM(81906,81911) = 6709002366

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Least Common Multiple of 81906 and 81911 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81906 and 81911, than apply into the LCM equation.

GCF(81906,81911) = 1
LCM(81906,81911) = ( 81906 × 81911) / 1
LCM(81906,81911) = 6709002366 / 1
LCM(81906,81911) = 6709002366

Least Common Multiple (LCM) of 81906 and 81911 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81906 and 81911. First we will calculate the prime factors of 81906 and 81911.

Prime Factorization of 81906

Prime factors of 81906 are 2, 3, 11, 17, 73. Prime factorization of 81906 in exponential form is:

81906 = 21 × 31 × 111 × 171 × 731

Prime Factorization of 81911

Prime factors of 81911 are 101, 811. Prime factorization of 81911 in exponential form is:

81911 = 1011 × 8111

Now multiplying the highest exponent prime factors to calculate the LCM of 81906 and 81911.

LCM(81906,81911) = 21 × 31 × 111 × 171 × 731 × 1011 × 8111
LCM(81906,81911) = 6709002366