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What is the Least Common Multiple of 21567 and 21586?

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 21567 and 21586 is 465545262.

LCM(21567,21586) = 465545262

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Least Common Multiple of 21567 and 21586 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21567 and 21586, than apply into the LCM equation.

GCF(21567,21586) = 1
LCM(21567,21586) = ( 21567 × 21586) / 1
LCM(21567,21586) = 465545262 / 1
LCM(21567,21586) = 465545262

Least Common Multiple (LCM) of 21567 and 21586 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21567 and 21586. First we will calculate the prime factors of 21567 and 21586.

Prime Factorization of 21567

Prime factors of 21567 are 3, 7, 13, 79. Prime factorization of 21567 in exponential form is:

21567 = 31 × 71 × 131 × 791

Prime Factorization of 21586

Prime factors of 21586 are 2, 43, 251. Prime factorization of 21586 in exponential form is:

21586 = 21 × 431 × 2511

Now multiplying the highest exponent prime factors to calculate the LCM of 21567 and 21586.

LCM(21567,21586) = 31 × 71 × 131 × 791 × 21 × 431 × 2511
LCM(21567,21586) = 465545262