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What is the Least Common Multiple of 13678 and 13691?

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 13678 and 13691 is 187265498.

LCM(13678,13691) = 187265498

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Least Common Multiple of 13678 and 13691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13678 and 13691, than apply into the LCM equation.

GCF(13678,13691) = 1
LCM(13678,13691) = ( 13678 × 13691) / 1
LCM(13678,13691) = 187265498 / 1
LCM(13678,13691) = 187265498

Least Common Multiple (LCM) of 13678 and 13691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13678 and 13691. First we will calculate the prime factors of 13678 and 13691.

Prime Factorization of 13678

Prime factors of 13678 are 2, 7, 977. Prime factorization of 13678 in exponential form is:

13678 = 21 × 71 × 9771

Prime Factorization of 13691

Prime factors of 13691 are 13691. Prime factorization of 13691 in exponential form is:

13691 = 136911

Now multiplying the highest exponent prime factors to calculate the LCM of 13678 and 13691.

LCM(13678,13691) = 21 × 71 × 9771 × 136911
LCM(13678,13691) = 187265498