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# What are the factors and prime factors of 16?

Updated: 4/28/2022

Wiki User

13y ago

16 is a composite number because it has factors other than 1 and itself. It is not a Prime number.

The 5 factors of 16 are 1, 2, 4, 8, and 16.

Note: It has an odd number of factors because 16 is a square number (4 x 4).

The factor pairs of 16 are 1 x 16, 2 x 8, and 4 x 4.

The proper factors of 16 are 1, 2, 4, and 8 or,

if the definition you are using excludes 1, they are 2, 4, and 8.

The prime factors of 16 are 2, 2, 2, and 2. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.

The only distinct prime factor (listing each prime factor only once) of 16 is 2.

The prime factorization of 16 is 2 x 2 x 2 x 2 or, in index form (in other words, exponential form), 24.

NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.

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13y ago

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Q: What are the factors and prime factors of 16?
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