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What is the Least Common Multiple of 31136 and 31145?

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 31136 and 31145 is 969730720.

LCM(31136,31145) = 969730720

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Least Common Multiple of 31136 and 31145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31136 and 31145, than apply into the LCM equation.

GCF(31136,31145) = 1
LCM(31136,31145) = ( 31136 × 31145) / 1
LCM(31136,31145) = 969730720 / 1
LCM(31136,31145) = 969730720

Least Common Multiple (LCM) of 31136 and 31145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31136 and 31145. First we will calculate the prime factors of 31136 and 31145.

Prime Factorization of 31136

Prime factors of 31136 are 2, 7, 139. Prime factorization of 31136 in exponential form is:

31136 = 25 × 71 × 1391

Prime Factorization of 31145

Prime factors of 31145 are 5, 6229. Prime factorization of 31145 in exponential form is:

31145 = 51 × 62291

Now multiplying the highest exponent prime factors to calculate the LCM of 31136 and 31145.

LCM(31136,31145) = 25 × 71 × 1391 × 51 × 62291
LCM(31136,31145) = 969730720