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Least Common Multiple of 8 and 17

Least common multiple (LCM) of 8 and 17 is 136.

LCM(8,17) = 136

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.

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Least Common Multiple of 8 and 17 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8 and 17, than apply into the LCM equation.

GCF(8,17) = 1
LCM(8,17) = ( 8 × 17) / 1
LCM(8,17) = 136 / 1
LCM(8,17) = 136

Least Common Multiple (LCM) of 8 and 17 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8 and 17. First we will calculate the prime factors of 8 and 17.

Prime Factorization of 8

Prime factors of 8 are 2. Prime factorization of 8 in exponential form is:

8 = 23

Prime Factorization of 17

Prime factors of 17 are 17. Prime factorization of 17 in exponential form is:

17 = 171

Now multiplying the highest exponent prime factors to calculate the LCM of 8 and 17.

LCM(8,17) = 23 × 171
LCM(8,17) = 136

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aundraya 2019-08-26 14:38:04

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