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What is the Least Common Multiple of 374 and 381?

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 374 and 381 is 142494.

LCM(374,381) = 142494

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Least Common Multiple of 374 and 381 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 374 and 381, than apply into the LCM equation.

GCF(374,381) = 1
LCM(374,381) = ( 374 × 381) / 1
LCM(374,381) = 142494 / 1
LCM(374,381) = 142494

Least Common Multiple (LCM) of 374 and 381 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 374 and 381. First we will calculate the prime factors of 374 and 381.

Prime Factorization of 374

Prime factors of 374 are 2, 11, 17. Prime factorization of 374 in exponential form is:

374 = 21 × 111 × 171

Prime Factorization of 381

Prime factors of 381 are 3, 127. Prime factorization of 381 in exponential form is:

381 = 31 × 1271

Now multiplying the highest exponent prime factors to calculate the LCM of 374 and 381.

LCM(374,381) = 21 × 111 × 171 × 31 × 1271
LCM(374,381) = 142494