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What is the Least Common Multiple of 20795 and 20808?

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 20795 and 20808 is 432702360.

LCM(20795,20808) = 432702360

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Least Common Multiple of 20795 and 20808 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20795 and 20808, than apply into the LCM equation.

GCF(20795,20808) = 1
LCM(20795,20808) = ( 20795 × 20808) / 1
LCM(20795,20808) = 432702360 / 1
LCM(20795,20808) = 432702360

Least Common Multiple (LCM) of 20795 and 20808 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20795 and 20808. First we will calculate the prime factors of 20795 and 20808.

Prime Factorization of 20795

Prime factors of 20795 are 5, 4159. Prime factorization of 20795 in exponential form is:

20795 = 51 × 41591

Prime Factorization of 20808

Prime factors of 20808 are 2, 3, 17. Prime factorization of 20808 in exponential form is:

20808 = 23 × 32 × 172

Now multiplying the highest exponent prime factors to calculate the LCM of 20795 and 20808.

LCM(20795,20808) = 51 × 41591 × 23 × 32 × 172
LCM(20795,20808) = 432702360