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What is the Least Common Multiple of 13965 and 13979?

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 13965 and 13979 is 27888105.

LCM(13965,13979) = 27888105

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Least Common Multiple of 13965 and 13979 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13965 and 13979, than apply into the LCM equation.

GCF(13965,13979) = 7
LCM(13965,13979) = ( 13965 × 13979) / 7
LCM(13965,13979) = 195216735 / 7
LCM(13965,13979) = 27888105

Least Common Multiple (LCM) of 13965 and 13979 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13965 and 13979. First we will calculate the prime factors of 13965 and 13979.

Prime Factorization of 13965

Prime factors of 13965 are 3, 5, 7, 19. Prime factorization of 13965 in exponential form is:

13965 = 31 × 51 × 72 × 191

Prime Factorization of 13979

Prime factors of 13979 are 7, 1997. Prime factorization of 13979 in exponential form is:

13979 = 71 × 19971

Now multiplying the highest exponent prime factors to calculate the LCM of 13965 and 13979.

LCM(13965,13979) = 31 × 51 × 72 × 191 × 19971
LCM(13965,13979) = 27888105