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What is the Least Common Multiple of 1382 and 1387?

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 1382 and 1387 is 1916834.

LCM(1382,1387) = 1916834

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Least Common Multiple of 1382 and 1387 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1382 and 1387, than apply into the LCM equation.

GCF(1382,1387) = 1
LCM(1382,1387) = ( 1382 × 1387) / 1
LCM(1382,1387) = 1916834 / 1
LCM(1382,1387) = 1916834

Least Common Multiple (LCM) of 1382 and 1387 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1382 and 1387. First we will calculate the prime factors of 1382 and 1387.

Prime Factorization of 1382

Prime factors of 1382 are 2, 691. Prime factorization of 1382 in exponential form is:

1382 = 21 × 6911

Prime Factorization of 1387

Prime factors of 1387 are 19, 73. Prime factorization of 1387 in exponential form is:

1387 = 191 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 1382 and 1387.

LCM(1382,1387) = 21 × 6911 × 191 × 731
LCM(1382,1387) = 1916834