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What is the Least Common Multiple of 31145 and 31157?

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 31145 and 31157 is 970384765.

LCM(31145,31157) = 970384765

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Least Common Multiple of 31145 and 31157 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31145 and 31157, than apply into the LCM equation.

GCF(31145,31157) = 1
LCM(31145,31157) = ( 31145 × 31157) / 1
LCM(31145,31157) = 970384765 / 1
LCM(31145,31157) = 970384765

Least Common Multiple (LCM) of 31145 and 31157 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31145 and 31157. First we will calculate the prime factors of 31145 and 31157.

Prime Factorization of 31145

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

31145 = 51 × 62291

Prime Factorization of 31157

Prime factors of 31157 are 7, 4451. Prime factorization of 31157 in exponential form is:

31157 = 71 × 44511

Now multiplying the highest exponent prime factors to calculate the LCM of 31145 and 31157.

LCM(31145,31157) = 51 × 62291 × 71 × 44511
LCM(31145,31157) = 970384765