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What is the Least Common Multiple of 20541 and 20554?

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 20541 and 20554 is 422199714.

LCM(20541,20554) = 422199714

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Least Common Multiple of 20541 and 20554 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20541 and 20554, than apply into the LCM equation.

GCF(20541,20554) = 1
LCM(20541,20554) = ( 20541 × 20554) / 1
LCM(20541,20554) = 422199714 / 1
LCM(20541,20554) = 422199714

Least Common Multiple (LCM) of 20541 and 20554 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20541 and 20554. First we will calculate the prime factors of 20541 and 20554.

Prime Factorization of 20541

Prime factors of 20541 are 3, 41, 167. Prime factorization of 20541 in exponential form is:

20541 = 31 × 411 × 1671

Prime Factorization of 20554

Prime factors of 20554 are 2, 43, 239. Prime factorization of 20554 in exponential form is:

20554 = 21 × 431 × 2391

Now multiplying the highest exponent prime factors to calculate the LCM of 20541 and 20554.

LCM(20541,20554) = 31 × 411 × 1671 × 21 × 431 × 2391
LCM(20541,20554) = 422199714