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What is the Least Common Multiple of 12990 and 12995?

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 12990 and 12995 is 33761010.

LCM(12990,12995) = 33761010

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Least Common Multiple of 12990 and 12995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12990 and 12995, than apply into the LCM equation.

GCF(12990,12995) = 5
LCM(12990,12995) = ( 12990 × 12995) / 5
LCM(12990,12995) = 168805050 / 5
LCM(12990,12995) = 33761010

Least Common Multiple (LCM) of 12990 and 12995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12990 and 12995. First we will calculate the prime factors of 12990 and 12995.

Prime Factorization of 12990

Prime factors of 12990 are 2, 3, 5, 433. Prime factorization of 12990 in exponential form is:

12990 = 21 × 31 × 51 × 4331

Prime Factorization of 12995

Prime factors of 12995 are 5, 23, 113. Prime factorization of 12995 in exponential form is:

12995 = 51 × 231 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 12990 and 12995.

LCM(12990,12995) = 21 × 31 × 51 × 4331 × 231 × 1131
LCM(12990,12995) = 33761010