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What is the Least Common Multiple of 31823 and 31840?

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 31823 and 31840 is 1013244320.

LCM(31823,31840) = 1013244320

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Least Common Multiple of 31823 and 31840 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31823 and 31840, than apply into the LCM equation.

GCF(31823,31840) = 1
LCM(31823,31840) = ( 31823 × 31840) / 1
LCM(31823,31840) = 1013244320 / 1
LCM(31823,31840) = 1013244320

Least Common Multiple (LCM) of 31823 and 31840 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31823 and 31840. First we will calculate the prime factors of 31823 and 31840.

Prime Factorization of 31823

Prime factors of 31823 are 11, 263. Prime factorization of 31823 in exponential form is:

31823 = 112 × 2631

Prime Factorization of 31840

Prime factors of 31840 are 2, 5, 199. Prime factorization of 31840 in exponential form is:

31840 = 25 × 51 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 31823 and 31840.

LCM(31823,31840) = 112 × 2631 × 25 × 51 × 1991
LCM(31823,31840) = 1013244320