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What is the Least Common Multiple of 1267 and 1279?

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 1267 and 1279 is 1620493.

LCM(1267,1279) = 1620493

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Least Common Multiple of 1267 and 1279 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1267 and 1279, than apply into the LCM equation.

GCF(1267,1279) = 1
LCM(1267,1279) = ( 1267 × 1279) / 1
LCM(1267,1279) = 1620493 / 1
LCM(1267,1279) = 1620493

Least Common Multiple (LCM) of 1267 and 1279 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1267 and 1279. First we will calculate the prime factors of 1267 and 1279.

Prime Factorization of 1267

Prime factors of 1267 are 7, 181. Prime factorization of 1267 in exponential form is:

1267 = 71 × 1811

Prime Factorization of 1279

Prime factors of 1279 are 1279. Prime factorization of 1279 in exponential form is:

1279 = 12791

Now multiplying the highest exponent prime factors to calculate the LCM of 1267 and 1279.

LCM(1267,1279) = 71 × 1811 × 12791
LCM(1267,1279) = 1620493