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What is the Least Common Multiple of 3105 and 3110?

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 3105 and 3110 is 1931310.

LCM(3105,3110) = 1931310

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Least Common Multiple of 3105 and 3110 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3105 and 3110, than apply into the LCM equation.

GCF(3105,3110) = 5
LCM(3105,3110) = ( 3105 × 3110) / 5
LCM(3105,3110) = 9656550 / 5
LCM(3105,3110) = 1931310

Least Common Multiple (LCM) of 3105 and 3110 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3105 and 3110. First we will calculate the prime factors of 3105 and 3110.

Prime Factorization of 3105

Prime factors of 3105 are 3, 5, 23. Prime factorization of 3105 in exponential form is:

3105 = 33 × 51 × 231

Prime Factorization of 3110

Prime factors of 3110 are 2, 5, 311. Prime factorization of 3110 in exponential form is:

3110 = 21 × 51 × 3111

Now multiplying the highest exponent prime factors to calculate the LCM of 3105 and 3110.

LCM(3105,3110) = 33 × 51 × 231 × 21 × 3111
LCM(3105,3110) = 1931310