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What is the Least Common Multiple of 1666 and 1676?

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 1666 and 1676 is 1396108.

LCM(1666,1676) = 1396108

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Least Common Multiple of 1666 and 1676 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1666 and 1676, than apply into the LCM equation.

GCF(1666,1676) = 2
LCM(1666,1676) = ( 1666 × 1676) / 2
LCM(1666,1676) = 2792216 / 2
LCM(1666,1676) = 1396108

Least Common Multiple (LCM) of 1666 and 1676 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1666 and 1676. First we will calculate the prime factors of 1666 and 1676.

Prime Factorization of 1666

Prime factors of 1666 are 2, 7, 17. Prime factorization of 1666 in exponential form is:

1666 = 21 × 72 × 171

Prime Factorization of 1676

Prime factors of 1676 are 2, 419. Prime factorization of 1676 in exponential form is:

1676 = 22 × 4191

Now multiplying the highest exponent prime factors to calculate the LCM of 1666 and 1676.

LCM(1666,1676) = 22 × 72 × 171 × 4191
LCM(1666,1676) = 1396108