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What is the Least Common Multiple of 31800 and 31813?

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 31800 and 31813 is 1011653400.

LCM(31800,31813) = 1011653400

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Least Common Multiple of 31800 and 31813 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31800 and 31813, than apply into the LCM equation.

GCF(31800,31813) = 1
LCM(31800,31813) = ( 31800 × 31813) / 1
LCM(31800,31813) = 1011653400 / 1
LCM(31800,31813) = 1011653400

Least Common Multiple (LCM) of 31800 and 31813 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31800 and 31813. First we will calculate the prime factors of 31800 and 31813.

Prime Factorization of 31800

Prime factors of 31800 are 2, 3, 5, 53. Prime factorization of 31800 in exponential form is:

31800 = 23 × 31 × 52 × 531

Prime Factorization of 31813

Prime factors of 31813 are 29, 1097. Prime factorization of 31813 in exponential form is:

31813 = 291 × 10971

Now multiplying the highest exponent prime factors to calculate the LCM of 31800 and 31813.

LCM(31800,31813) = 23 × 31 × 52 × 531 × 291 × 10971
LCM(31800,31813) = 1011653400