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What is the Least Common Multiple of 12942 and 12961?

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 12942 and 12961 is 167741262.

LCM(12942,12961) = 167741262

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Least Common Multiple of 12942 and 12961 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12942 and 12961, than apply into the LCM equation.

GCF(12942,12961) = 1
LCM(12942,12961) = ( 12942 × 12961) / 1
LCM(12942,12961) = 167741262 / 1
LCM(12942,12961) = 167741262

Least Common Multiple (LCM) of 12942 and 12961 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12942 and 12961. First we will calculate the prime factors of 12942 and 12961.

Prime Factorization of 12942

Prime factors of 12942 are 2, 3, 719. Prime factorization of 12942 in exponential form is:

12942 = 21 × 32 × 7191

Prime Factorization of 12961

Prime factors of 12961 are 13, 997. Prime factorization of 12961 in exponential form is:

12961 = 131 × 9971

Now multiplying the highest exponent prime factors to calculate the LCM of 12942 and 12961.

LCM(12942,12961) = 21 × 32 × 7191 × 131 × 9971
LCM(12942,12961) = 167741262