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What is the Least Common Multiple of 31774 and 31782?

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 31774 and 31782 is 504920634.

LCM(31774,31782) = 504920634

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Least Common Multiple of 31774 and 31782 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31774 and 31782, than apply into the LCM equation.

GCF(31774,31782) = 2
LCM(31774,31782) = ( 31774 × 31782) / 2
LCM(31774,31782) = 1009841268 / 2
LCM(31774,31782) = 504920634

Least Common Multiple (LCM) of 31774 and 31782 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31774 and 31782. First we will calculate the prime factors of 31774 and 31782.

Prime Factorization of 31774

Prime factors of 31774 are 2, 15887. Prime factorization of 31774 in exponential form is:

31774 = 21 × 158871

Prime Factorization of 31782

Prime factors of 31782 are 2, 3, 5297. Prime factorization of 31782 in exponential form is:

31782 = 21 × 31 × 52971

Now multiplying the highest exponent prime factors to calculate the LCM of 31774 and 31782.

LCM(31774,31782) = 21 × 158871 × 31 × 52971
LCM(31774,31782) = 504920634