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What is the Least Common Multiple of 16653 and 16666?

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 16653 and 16666 is 21349146.

LCM(16653,16666) = 21349146

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Least Common Multiple of 16653 and 16666 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16653 and 16666, than apply into the LCM equation.

GCF(16653,16666) = 13
LCM(16653,16666) = ( 16653 × 16666) / 13
LCM(16653,16666) = 277538898 / 13
LCM(16653,16666) = 21349146

Least Common Multiple (LCM) of 16653 and 16666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16653 and 16666. First we will calculate the prime factors of 16653 and 16666.

Prime Factorization of 16653

Prime factors of 16653 are 3, 7, 13, 61. Prime factorization of 16653 in exponential form is:

16653 = 31 × 71 × 131 × 611

Prime Factorization of 16666

Prime factors of 16666 are 2, 13, 641. Prime factorization of 16666 in exponential form is:

16666 = 21 × 131 × 6411

Now multiplying the highest exponent prime factors to calculate the LCM of 16653 and 16666.

LCM(16653,16666) = 31 × 71 × 131 × 611 × 21 × 6411
LCM(16653,16666) = 21349146