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What is the Least Common Multiple of 1683 and 1697?

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 1683 and 1697 is 2856051.

LCM(1683,1697) = 2856051

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Least Common Multiple of 1683 and 1697 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1683 and 1697, than apply into the LCM equation.

GCF(1683,1697) = 1
LCM(1683,1697) = ( 1683 × 1697) / 1
LCM(1683,1697) = 2856051 / 1
LCM(1683,1697) = 2856051

Least Common Multiple (LCM) of 1683 and 1697 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1683 and 1697. First we will calculate the prime factors of 1683 and 1697.

Prime Factorization of 1683

Prime factors of 1683 are 3, 11, 17. Prime factorization of 1683 in exponential form is:

1683 = 32 × 111 × 171

Prime Factorization of 1697

Prime factors of 1697 are 1697. Prime factorization of 1697 in exponential form is:

1697 = 16971

Now multiplying the highest exponent prime factors to calculate the LCM of 1683 and 1697.

LCM(1683,1697) = 32 × 111 × 171 × 16971
LCM(1683,1697) = 2856051