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What is the Least Common Multiple of 20383 and 20397?

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 20383 and 20397 is 415752051.

LCM(20383,20397) = 415752051

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Least Common Multiple of 20383 and 20397 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20383 and 20397, than apply into the LCM equation.

GCF(20383,20397) = 1
LCM(20383,20397) = ( 20383 × 20397) / 1
LCM(20383,20397) = 415752051 / 1
LCM(20383,20397) = 415752051

Least Common Multiple (LCM) of 20383 and 20397 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20383 and 20397. First we will calculate the prime factors of 20383 and 20397.

Prime Factorization of 20383

Prime factors of 20383 are 11, 17, 109. Prime factorization of 20383 in exponential form is:

20383 = 111 × 171 × 1091

Prime Factorization of 20397

Prime factors of 20397 are 3, 13, 523. Prime factorization of 20397 in exponential form is:

20397 = 31 × 131 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 20383 and 20397.

LCM(20383,20397) = 111 × 171 × 1091 × 31 × 131 × 5231
LCM(20383,20397) = 415752051