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What is the Least Common Multiple of 31286 and 31297?

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 31286 and 31297 is 979157942.

LCM(31286,31297) = 979157942

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Least Common Multiple of 31286 and 31297 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31286 and 31297, than apply into the LCM equation.

GCF(31286,31297) = 1
LCM(31286,31297) = ( 31286 × 31297) / 1
LCM(31286,31297) = 979157942 / 1
LCM(31286,31297) = 979157942

Least Common Multiple (LCM) of 31286 and 31297 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31286 and 31297. First we will calculate the prime factors of 31286 and 31297.

Prime Factorization of 31286

Prime factors of 31286 are 2, 15643. Prime factorization of 31286 in exponential form is:

31286 = 21 × 156431

Prime Factorization of 31297

Prime factors of 31297 are 7, 17, 263. Prime factorization of 31297 in exponential form is:

31297 = 71 × 171 × 2631

Now multiplying the highest exponent prime factors to calculate the LCM of 31286 and 31297.

LCM(31286,31297) = 21 × 156431 × 71 × 171 × 2631
LCM(31286,31297) = 979157942