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What is the Least Common Multiple of 31309 and 31318?

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 31309 and 31318 is 980535262.

LCM(31309,31318) = 980535262

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Least Common Multiple of 31309 and 31318 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31309 and 31318, than apply into the LCM equation.

GCF(31309,31318) = 1
LCM(31309,31318) = ( 31309 × 31318) / 1
LCM(31309,31318) = 980535262 / 1
LCM(31309,31318) = 980535262

Least Common Multiple (LCM) of 31309 and 31318 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31309 and 31318. First we will calculate the prime factors of 31309 and 31318.

Prime Factorization of 31309

Prime factors of 31309 are 131, 239. Prime factorization of 31309 in exponential form is:

31309 = 1311 × 2391

Prime Factorization of 31318

Prime factors of 31318 are 2, 7, 2237. Prime factorization of 31318 in exponential form is:

31318 = 21 × 71 × 22371

Now multiplying the highest exponent prime factors to calculate the LCM of 31309 and 31318.

LCM(31309,31318) = 1311 × 2391 × 21 × 71 × 22371
LCM(31309,31318) = 980535262