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What is the Least Common Multiple of 28942 and 28956?

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 28942 and 28956 is 419022276.

LCM(28942,28956) = 419022276

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Least Common Multiple of 28942 and 28956 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28942 and 28956, than apply into the LCM equation.

GCF(28942,28956) = 2
LCM(28942,28956) = ( 28942 × 28956) / 2
LCM(28942,28956) = 838044552 / 2
LCM(28942,28956) = 419022276

Least Common Multiple (LCM) of 28942 and 28956 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28942 and 28956. First we will calculate the prime factors of 28942 and 28956.

Prime Factorization of 28942

Prime factors of 28942 are 2, 29, 499. Prime factorization of 28942 in exponential form is:

28942 = 21 × 291 × 4991

Prime Factorization of 28956

Prime factors of 28956 are 2, 3, 19, 127. Prime factorization of 28956 in exponential form is:

28956 = 22 × 31 × 191 × 1271

Now multiplying the highest exponent prime factors to calculate the LCM of 28942 and 28956.

LCM(28942,28956) = 22 × 291 × 4991 × 31 × 191 × 1271
LCM(28942,28956) = 419022276