What are all the divisors of 399?

The divisors or factors of 399 are:

1, 3, 7, 19, 21, 57 and 133

The number 399 has 7 divisors.

Divisors of Calculator

Write an integer greater than 0 then press 'Calculate!':
Ex.: 1, 2, 7, 16, 1024, etc.

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The number 399 is a composite number because it is divisible at least by 3, 7, and 19. See below how many and what are their divisors.

The prime factorization of the number 399 is written as the product of powers, as 3•7•19 .

The prime factors of 399 are 3, 7, and 19.

Prime factors do not always represent all divisors of a number. The number 399 has the following divisors or factors:

1, 3, 7, 19, 21, 57 and 133

These numbers above represent 'all' the divisors of 399 (not only the prime ones). Note that the number 399 has 7 divisors.

Use our divisor calculator to find out if any number is divisible, and in this case, identify and count all its divisors. See also our 'Table of Divisors from 0 to 10,000'

FAQs on divisors or factors of 399

What are all the divisors of 399?

The divisors of the number 399 are:

1, 3, 7, 19, 21, 57 and 133

How many divisors does 399 have?

The number 399 has 7 divisors.

Is 399 a prime or a composite number?

The number 399 is a composite number because it is divided by 7.

See also our tables of dividers:

Divisors Calculation Examples With Work

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