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What is the Least Common Multiple of 31533 and 31540?

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 31533 and 31540 is 994550820.

LCM(31533,31540) = 994550820

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Least Common Multiple of 31533 and 31540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31533 and 31540, than apply into the LCM equation.

GCF(31533,31540) = 1
LCM(31533,31540) = ( 31533 × 31540) / 1
LCM(31533,31540) = 994550820 / 1
LCM(31533,31540) = 994550820

Least Common Multiple (LCM) of 31533 and 31540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31533 and 31540. First we will calculate the prime factors of 31533 and 31540.

Prime Factorization of 31533

Prime factors of 31533 are 3, 23, 457. Prime factorization of 31533 in exponential form is:

31533 = 31 × 231 × 4571

Prime Factorization of 31540

Prime factors of 31540 are 2, 5, 19, 83. Prime factorization of 31540 in exponential form is:

31540 = 22 × 51 × 191 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 31533 and 31540.

LCM(31533,31540) = 31 × 231 × 4571 × 22 × 51 × 191 × 831
LCM(31533,31540) = 994550820