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What is the Least Common Multiple of 28942 and 28960?

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 28960 is 419080160.

LCM(28942,28960) = 419080160

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Least Common Multiple of 28942 and 28960 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 28960, than apply into the LCM equation.

GCF(28942,28960) = 2
LCM(28942,28960) = ( 28942 × 28960) / 2
LCM(28942,28960) = 838160320 / 2
LCM(28942,28960) = 419080160

Least Common Multiple (LCM) of 28942 and 28960 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28942 and 28960. First we will calculate the prime factors of 28942 and 28960.

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 28960

Prime factors of 28960 are 2, 5, 181. Prime factorization of 28960 in exponential form is:

28960 = 25 × 51 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 28942 and 28960.

LCM(28942,28960) = 25 × 291 × 4991 × 51 × 1811
LCM(28942,28960) = 419080160