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What is the Least Common Multiple of 21583 and 21602?

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 21583 and 21602 is 466235966.

LCM(21583,21602) = 466235966

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Least Common Multiple of 21583 and 21602 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21583 and 21602, than apply into the LCM equation.

GCF(21583,21602) = 1
LCM(21583,21602) = ( 21583 × 21602) / 1
LCM(21583,21602) = 466235966 / 1
LCM(21583,21602) = 466235966

Least Common Multiple (LCM) of 21583 and 21602 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21583 and 21602. First we will calculate the prime factors of 21583 and 21602.

Prime Factorization of 21583

Prime factors of 21583 are 113, 191. Prime factorization of 21583 in exponential form is:

21583 = 1131 × 1911

Prime Factorization of 21602

Prime factors of 21602 are 2, 7, 1543. Prime factorization of 21602 in exponential form is:

21602 = 21 × 71 × 15431

Now multiplying the highest exponent prime factors to calculate the LCM of 21583 and 21602.

LCM(21583,21602) = 1131 × 1911 × 21 × 71 × 15431
LCM(21583,21602) = 466235966