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What is the Least Common Multiple of 1329 and 1342?

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 1329 and 1342 is 1783518.

LCM(1329,1342) = 1783518

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Least Common Multiple of 1329 and 1342 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1329 and 1342, than apply into the LCM equation.

GCF(1329,1342) = 1
LCM(1329,1342) = ( 1329 × 1342) / 1
LCM(1329,1342) = 1783518 / 1
LCM(1329,1342) = 1783518

Least Common Multiple (LCM) of 1329 and 1342 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1329 and 1342. First we will calculate the prime factors of 1329 and 1342.

Prime Factorization of 1329

Prime factors of 1329 are 3, 443. Prime factorization of 1329 in exponential form is:

1329 = 31 × 4431

Prime Factorization of 1342

Prime factors of 1342 are 2, 11, 61. Prime factorization of 1342 in exponential form is:

1342 = 21 × 111 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 1329 and 1342.

LCM(1329,1342) = 31 × 4431 × 21 × 111 × 611
LCM(1329,1342) = 1783518