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What is the Least Common Multiple of 13688 and 13694?

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 13688 and 13694 is 93721736.

LCM(13688,13694) = 93721736

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Least Common Multiple of 13688 and 13694 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13688 and 13694, than apply into the LCM equation.

GCF(13688,13694) = 2
LCM(13688,13694) = ( 13688 × 13694) / 2
LCM(13688,13694) = 187443472 / 2
LCM(13688,13694) = 93721736

Least Common Multiple (LCM) of 13688 and 13694 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13688 and 13694. First we will calculate the prime factors of 13688 and 13694.

Prime Factorization of 13688

Prime factors of 13688 are 2, 29, 59. Prime factorization of 13688 in exponential form is:

13688 = 23 × 291 × 591

Prime Factorization of 13694

Prime factors of 13694 are 2, 41, 167. Prime factorization of 13694 in exponential form is:

13694 = 21 × 411 × 1671

Now multiplying the highest exponent prime factors to calculate the LCM of 13688 and 13694.

LCM(13688,13694) = 23 × 291 × 591 × 411 × 1671
LCM(13688,13694) = 93721736