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What is the Least Common Multiple of 16690 and 16698?

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 16690 and 16698 is 139344810.

LCM(16690,16698) = 139344810

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Least Common Multiple of 16690 and 16698 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16690 and 16698, than apply into the LCM equation.

GCF(16690,16698) = 2
LCM(16690,16698) = ( 16690 × 16698) / 2
LCM(16690,16698) = 278689620 / 2
LCM(16690,16698) = 139344810

Least Common Multiple (LCM) of 16690 and 16698 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16690 and 16698. First we will calculate the prime factors of 16690 and 16698.

Prime Factorization of 16690

Prime factors of 16690 are 2, 5, 1669. Prime factorization of 16690 in exponential form is:

16690 = 21 × 51 × 16691

Prime Factorization of 16698

Prime factors of 16698 are 2, 3, 11, 23. Prime factorization of 16698 in exponential form is:

16698 = 21 × 31 × 112 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 16690 and 16698.

LCM(16690,16698) = 21 × 51 × 16691 × 31 × 112 × 231
LCM(16690,16698) = 139344810