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What is the Least Common Multiple of 99786 and 99790?

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 99786 and 99790 is 4978822470.

LCM(99786,99790) = 4978822470

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Least Common Multiple of 99786 and 99790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 99786 and 99790, than apply into the LCM equation.

GCF(99786,99790) = 2
LCM(99786,99790) = ( 99786 × 99790) / 2
LCM(99786,99790) = 9957644940 / 2
LCM(99786,99790) = 4978822470

Least Common Multiple (LCM) of 99786 and 99790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 99786 and 99790. First we will calculate the prime factors of 99786 and 99790.

Prime Factorization of 99786

Prime factors of 99786 are 2, 3, 16631. Prime factorization of 99786 in exponential form is:

99786 = 21 × 31 × 166311

Prime Factorization of 99790

Prime factors of 99790 are 2, 5, 17, 587. Prime factorization of 99790 in exponential form is:

99790 = 21 × 51 × 171 × 5871

Now multiplying the highest exponent prime factors to calculate the LCM of 99786 and 99790.

LCM(99786,99790) = 21 × 31 × 166311 × 51 × 171 × 5871
LCM(99786,99790) = 4978822470