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What is the Least Common Multiple of 31526 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 31526 and 31540 is 497165020.

LCM(31526,31540) = 497165020

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Least Common Multiple of 31526 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 31526 and 31540, than apply into the LCM equation.

GCF(31526,31540) = 2
LCM(31526,31540) = ( 31526 × 31540) / 2
LCM(31526,31540) = 994330040 / 2
LCM(31526,31540) = 497165020

Least Common Multiple (LCM) of 31526 and 31540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31526 and 31540. First we will calculate the prime factors of 31526 and 31540.

Prime Factorization of 31526

Prime factors of 31526 are 2, 11, 1433. Prime factorization of 31526 in exponential form is:

31526 = 21 × 111 × 14331

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 31526 and 31540.

LCM(31526,31540) = 22 × 111 × 14331 × 51 × 191 × 831
LCM(31526,31540) = 497165020