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What is the Least Common Multiple of 16688 and 16708?

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 16688 and 16708 is 69705776.

LCM(16688,16708) = 69705776

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Least Common Multiple of 16688 and 16708 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16688 and 16708, than apply into the LCM equation.

GCF(16688,16708) = 4
LCM(16688,16708) = ( 16688 × 16708) / 4
LCM(16688,16708) = 278823104 / 4
LCM(16688,16708) = 69705776

Least Common Multiple (LCM) of 16688 and 16708 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16688 and 16708. First we will calculate the prime factors of 16688 and 16708.

Prime Factorization of 16688

Prime factors of 16688 are 2, 7, 149. Prime factorization of 16688 in exponential form is:

16688 = 24 × 71 × 1491

Prime Factorization of 16708

Prime factors of 16708 are 2, 4177. Prime factorization of 16708 in exponential form is:

16708 = 22 × 41771

Now multiplying the highest exponent prime factors to calculate the LCM of 16688 and 16708.

LCM(16688,16708) = 24 × 71 × 1491 × 41771
LCM(16688,16708) = 69705776