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What is the Least Common Multiple of 20447 and 20467?

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 20447 and 20467 is 418488749.

LCM(20447,20467) = 418488749

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Least Common Multiple of 20447 and 20467 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20447 and 20467, than apply into the LCM equation.

GCF(20447,20467) = 1
LCM(20447,20467) = ( 20447 × 20467) / 1
LCM(20447,20467) = 418488749 / 1
LCM(20447,20467) = 418488749

Least Common Multiple (LCM) of 20447 and 20467 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20447 and 20467. First we will calculate the prime factors of 20447 and 20467.

Prime Factorization of 20447

Prime factors of 20447 are 7, 23, 127. Prime factorization of 20447 in exponential form is:

20447 = 71 × 231 × 1271

Prime Factorization of 20467

Prime factors of 20467 are 97, 211. Prime factorization of 20467 in exponential form is:

20467 = 971 × 2111

Now multiplying the highest exponent prime factors to calculate the LCM of 20447 and 20467.

LCM(20447,20467) = 71 × 231 × 1271 × 971 × 2111
LCM(20447,20467) = 418488749