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What is the Least Common Multiple of 1318 and 1322?

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 1318 and 1322 is 871198.

LCM(1318,1322) = 871198

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Least Common Multiple of 1318 and 1322 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1318 and 1322, than apply into the LCM equation.

GCF(1318,1322) = 2
LCM(1318,1322) = ( 1318 × 1322) / 2
LCM(1318,1322) = 1742396 / 2
LCM(1318,1322) = 871198

Least Common Multiple (LCM) of 1318 and 1322 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1318 and 1322. First we will calculate the prime factors of 1318 and 1322.

Prime Factorization of 1318

Prime factors of 1318 are 2, 659. Prime factorization of 1318 in exponential form is:

1318 = 21 × 6591

Prime Factorization of 1322

Prime factors of 1322 are 2, 661. Prime factorization of 1322 in exponential form is:

1322 = 21 × 6611

Now multiplying the highest exponent prime factors to calculate the LCM of 1318 and 1322.

LCM(1318,1322) = 21 × 6591 × 6611
LCM(1318,1322) = 871198