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What is the Least Common Multiple of 13790 and 13797?

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 13790 and 13797 is 27180090.

LCM(13790,13797) = 27180090

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Least Common Multiple of 13790 and 13797 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13790 and 13797, than apply into the LCM equation.

GCF(13790,13797) = 7
LCM(13790,13797) = ( 13790 × 13797) / 7
LCM(13790,13797) = 190260630 / 7
LCM(13790,13797) = 27180090

Least Common Multiple (LCM) of 13790 and 13797 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13790 and 13797. First we will calculate the prime factors of 13790 and 13797.

Prime Factorization of 13790

Prime factors of 13790 are 2, 5, 7, 197. Prime factorization of 13790 in exponential form is:

13790 = 21 × 51 × 71 × 1971

Prime Factorization of 13797

Prime factors of 13797 are 3, 7, 73. Prime factorization of 13797 in exponential form is:

13797 = 33 × 71 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 13790 and 13797.

LCM(13790,13797) = 21 × 51 × 71 × 1971 × 33 × 731
LCM(13790,13797) = 27180090