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What is the Least Common Multiple of 28406 and 28417?

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 28406 and 28417 is 807213302.

LCM(28406,28417) = 807213302

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Least Common Multiple of 28406 and 28417 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28406 and 28417, than apply into the LCM equation.

GCF(28406,28417) = 1
LCM(28406,28417) = ( 28406 × 28417) / 1
LCM(28406,28417) = 807213302 / 1
LCM(28406,28417) = 807213302

Least Common Multiple (LCM) of 28406 and 28417 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28406 and 28417. First we will calculate the prime factors of 28406 and 28417.

Prime Factorization of 28406

Prime factors of 28406 are 2, 7, 2029. Prime factorization of 28406 in exponential form is:

28406 = 21 × 71 × 20291

Prime Factorization of 28417

Prime factors of 28417 are 157, 181. Prime factorization of 28417 in exponential form is:

28417 = 1571 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 28406 and 28417.

LCM(28406,28417) = 21 × 71 × 20291 × 1571 × 1811
LCM(28406,28417) = 807213302