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Prime decomposition of 399

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The number 399 is a composite number because 399 can be divided by one, by itself and at least by 3, 7 and 19. A composite number is an integer that can be divided by at least another natural number, besides itself and 1, without leaving a remainder (divided exactly).

The factorization or decomposition of 399 = 3•7•19. Notice that here, it is written in exponential form.

The prime factors of 399 are 3, 7 and 19. It is the list of the integer's prime factors.

The number of prime factors of 399 is 3.

Factor tree or prime decomposition for 399

As 399 is a composite number, we can draw its factor tree:

Here you can find the answer to questions related to: Prime decomposition of 399 or list the factors of 399. By using our online calculator to find the prime factors of any composite number and check if a number is prime or composite. This tool also draws the prime factor tree if the number is factorable and smaller than 16000.

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