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What is the Least Common Multiple of 21633 and 21644?

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 21633 and 21644 is 468224652.

LCM(21633,21644) = 468224652

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Least Common Multiple of 21633 and 21644 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21633 and 21644, than apply into the LCM equation.

GCF(21633,21644) = 1
LCM(21633,21644) = ( 21633 × 21644) / 1
LCM(21633,21644) = 468224652 / 1
LCM(21633,21644) = 468224652

Least Common Multiple (LCM) of 21633 and 21644 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21633 and 21644. First we will calculate the prime factors of 21633 and 21644.

Prime Factorization of 21633

Prime factors of 21633 are 3, 7211. Prime factorization of 21633 in exponential form is:

21633 = 31 × 72111

Prime Factorization of 21644

Prime factors of 21644 are 2, 7, 773. Prime factorization of 21644 in exponential form is:

21644 = 22 × 71 × 7731

Now multiplying the highest exponent prime factors to calculate the LCM of 21633 and 21644.

LCM(21633,21644) = 31 × 72111 × 22 × 71 × 7731
LCM(21633,21644) = 468224652