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What is the Least Common Multiple of 21443 and 21450?

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 21443 and 21450 is 459952350.

LCM(21443,21450) = 459952350

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Least Common Multiple of 21443 and 21450 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21443 and 21450, than apply into the LCM equation.

GCF(21443,21450) = 1
LCM(21443,21450) = ( 21443 × 21450) / 1
LCM(21443,21450) = 459952350 / 1
LCM(21443,21450) = 459952350

Least Common Multiple (LCM) of 21443 and 21450 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21443 and 21450. First we will calculate the prime factors of 21443 and 21450.

Prime Factorization of 21443

Prime factors of 21443 are 41, 523. Prime factorization of 21443 in exponential form is:

21443 = 411 × 5231

Prime Factorization of 21450

Prime factors of 21450 are 2, 3, 5, 11, 13. Prime factorization of 21450 in exponential form is:

21450 = 21 × 31 × 52 × 111 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 21443 and 21450.

LCM(21443,21450) = 411 × 5231 × 21 × 31 × 52 × 111 × 131
LCM(21443,21450) = 459952350