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What is the Least Common Multiple of 13713 and 13720?

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 13713 and 13720 is 26877480.

LCM(13713,13720) = 26877480

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Least Common Multiple of 13713 and 13720 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13713 and 13720, than apply into the LCM equation.

GCF(13713,13720) = 7
LCM(13713,13720) = ( 13713 × 13720) / 7
LCM(13713,13720) = 188142360 / 7
LCM(13713,13720) = 26877480

Least Common Multiple (LCM) of 13713 and 13720 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13713 and 13720. First we will calculate the prime factors of 13713 and 13720.

Prime Factorization of 13713

Prime factors of 13713 are 3, 7, 653. Prime factorization of 13713 in exponential form is:

13713 = 31 × 71 × 6531

Prime Factorization of 13720

Prime factors of 13720 are 2, 5, 7. Prime factorization of 13720 in exponential form is:

13720 = 23 × 51 × 73

Now multiplying the highest exponent prime factors to calculate the LCM of 13713 and 13720.

LCM(13713,13720) = 31 × 73 × 6531 × 23 × 51
LCM(13713,13720) = 26877480