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What is the Least Common Multiple of 20655 and 20674?

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 20655 and 20674 is 427021470.

LCM(20655,20674) = 427021470

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Least Common Multiple of 20655 and 20674 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20655 and 20674, than apply into the LCM equation.

GCF(20655,20674) = 1
LCM(20655,20674) = ( 20655 × 20674) / 1
LCM(20655,20674) = 427021470 / 1
LCM(20655,20674) = 427021470

Least Common Multiple (LCM) of 20655 and 20674 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20655 and 20674. First we will calculate the prime factors of 20655 and 20674.

Prime Factorization of 20655

Prime factors of 20655 are 3, 5, 17. Prime factorization of 20655 in exponential form is:

20655 = 35 × 51 × 171

Prime Factorization of 20674

Prime factors of 20674 are 2, 10337. Prime factorization of 20674 in exponential form is:

20674 = 21 × 103371

Now multiplying the highest exponent prime factors to calculate the LCM of 20655 and 20674.

LCM(20655,20674) = 35 × 51 × 171 × 21 × 103371
LCM(20655,20674) = 427021470