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What is the Least Common Multiple of 12946 and 12956?

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 12946 and 12956 is 83864188.

LCM(12946,12956) = 83864188

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Least Common Multiple of 12946 and 12956 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12946 and 12956, than apply into the LCM equation.

GCF(12946,12956) = 2
LCM(12946,12956) = ( 12946 × 12956) / 2
LCM(12946,12956) = 167728376 / 2
LCM(12946,12956) = 83864188

Least Common Multiple (LCM) of 12946 and 12956 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12946 and 12956. First we will calculate the prime factors of 12946 and 12956.

Prime Factorization of 12946

Prime factors of 12946 are 2, 6473. Prime factorization of 12946 in exponential form is:

12946 = 21 × 64731

Prime Factorization of 12956

Prime factors of 12956 are 2, 41, 79. Prime factorization of 12956 in exponential form is:

12956 = 22 × 411 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 12946 and 12956.

LCM(12946,12956) = 22 × 64731 × 411 × 791
LCM(12946,12956) = 83864188