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What is the Least Common Multiple of 1431 and 1451?

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 1431 and 1451 is 2076381.

LCM(1431,1451) = 2076381

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Least Common Multiple of 1431 and 1451 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1431 and 1451, than apply into the LCM equation.

GCF(1431,1451) = 1
LCM(1431,1451) = ( 1431 × 1451) / 1
LCM(1431,1451) = 2076381 / 1
LCM(1431,1451) = 2076381

Least Common Multiple (LCM) of 1431 and 1451 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1431 and 1451. First we will calculate the prime factors of 1431 and 1451.

Prime Factorization of 1431

Prime factors of 1431 are 3, 53. Prime factorization of 1431 in exponential form is:

1431 = 33 × 531

Prime Factorization of 1451

Prime factors of 1451 are 1451. Prime factorization of 1451 in exponential form is:

1451 = 14511

Now multiplying the highest exponent prime factors to calculate the LCM of 1431 and 1451.

LCM(1431,1451) = 33 × 531 × 14511
LCM(1431,1451) = 2076381