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What is the Least Common Multiple of 21741 and 21746?

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 21741 and 21746 is 472779786.

LCM(21741,21746) = 472779786

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Least Common Multiple of 21741 and 21746 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21741 and 21746, than apply into the LCM equation.

GCF(21741,21746) = 1
LCM(21741,21746) = ( 21741 × 21746) / 1
LCM(21741,21746) = 472779786 / 1
LCM(21741,21746) = 472779786

Least Common Multiple (LCM) of 21741 and 21746 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21741 and 21746. First we will calculate the prime factors of 21741 and 21746.

Prime Factorization of 21741

Prime factors of 21741 are 3, 7247. Prime factorization of 21741 in exponential form is:

21741 = 31 × 72471

Prime Factorization of 21746

Prime factors of 21746 are 2, 83, 131. Prime factorization of 21746 in exponential form is:

21746 = 21 × 831 × 1311

Now multiplying the highest exponent prime factors to calculate the LCM of 21741 and 21746.

LCM(21741,21746) = 31 × 72471 × 21 × 831 × 1311
LCM(21741,21746) = 472779786