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What is the Least Common Multiple of 31734 and 31743?

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 31734 and 31743 is 111925818.

LCM(31734,31743) = 111925818

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Least Common Multiple of 31734 and 31743 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31734 and 31743, than apply into the LCM equation.

GCF(31734,31743) = 9
LCM(31734,31743) = ( 31734 × 31743) / 9
LCM(31734,31743) = 1007332362 / 9
LCM(31734,31743) = 111925818

Least Common Multiple (LCM) of 31734 and 31743 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31734 and 31743. First we will calculate the prime factors of 31734 and 31743.

Prime Factorization of 31734

Prime factors of 31734 are 2, 3, 41, 43. Prime factorization of 31734 in exponential form is:

31734 = 21 × 32 × 411 × 431

Prime Factorization of 31743

Prime factors of 31743 are 3, 3527. Prime factorization of 31743 in exponential form is:

31743 = 32 × 35271

Now multiplying the highest exponent prime factors to calculate the LCM of 31734 and 31743.

LCM(31734,31743) = 21 × 32 × 411 × 431 × 35271
LCM(31734,31743) = 111925818