GCF and LCM Calculator Logo

What is the Least Common Multiple of 31784 and 31791?

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 31784 and 31791 is 1010445144.

LCM(31784,31791) = 1010445144

LCM Calculator and
and

Least Common Multiple of 31784 and 31791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31784 and 31791, than apply into the LCM equation.

GCF(31784,31791) = 1
LCM(31784,31791) = ( 31784 × 31791) / 1
LCM(31784,31791) = 1010445144 / 1
LCM(31784,31791) = 1010445144

Least Common Multiple (LCM) of 31784 and 31791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31784 and 31791. First we will calculate the prime factors of 31784 and 31791.

Prime Factorization of 31784

Prime factors of 31784 are 2, 29, 137. Prime factorization of 31784 in exponential form is:

31784 = 23 × 291 × 1371

Prime Factorization of 31791

Prime factors of 31791 are 3, 10597. Prime factorization of 31791 in exponential form is:

31791 = 31 × 105971

Now multiplying the highest exponent prime factors to calculate the LCM of 31784 and 31791.

LCM(31784,31791) = 23 × 291 × 1371 × 31 × 105971
LCM(31784,31791) = 1010445144