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    Factors of 16

    "Factors of a Number" Calculator
    Factors of

    What are the Factors of 16?

    Answer

    Factors of 16:
    1, 2, 4, 8, 16

    5 factors · 16 = 24 · composite

    Underlined — prime: 2 · 1 — neither prime nor composite · others — composite

    Factor pairs of 16

    √16 = 4124816

    3 pairs: 1 × 16 · 2 × 8 · 4 × 4

    4 × 4 is a pair of one factor — that is why 16 has an odd number of factors, 5.

    16 = 24 → (4 + 1) = 5 factors: add 1 to each exponent and multiply.

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    Factors of 16. Factors of 16: full list and factor pairs.
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    Factors Table

    NumberFactors
    11
    21, 2
    31, 3
    41, 2, 4
    51, 5
    61, 2, 3, 6
    71, 7
    81, 2, 4, 8
    91, 3, 9
    101, 2, 5, 10
    111, 11
    121, 2, 3, 4, 6, 12
    131, 13
    141, 2, 7, 14
    151, 3, 5, 15
    161, 2, 4, 8, 16
    171, 17
    181, 2, 3, 6, 9, 18
    191, 19
    201, 2, 4, 5, 10, 20
    211, 3, 7, 21
    221, 2, 11, 22
    231, 23
    241, 2, 3, 4, 6, 8, 12, 24
    251, 5, 25
    261, 2, 13, 26
    271, 3, 9, 27
    281, 2, 4, 7, 14, 28
    291, 29
    301, 2, 3, 5, 6, 10, 15, 30
    Recalculate with different values ↑

    FAQ

    What are the Factors of 16?

    Factors of 16: 1, 2, 4, 8, 16

    How many factors does 16 have?

    Number 16 has 5 factors

    How many Factor Pairs does 16 have?

    Number 16 has 3 factor pairs

    Is 16 a prime or composite number?

    Composite: 16 = 2⁴, so it has 5 factors — a prime has exactly two.

    How many factors does 16 have excluding 1 and 16?

    3: 2, 4 and 8.

    Why does 16 have an odd number of factors?

    16 is a perfect square: in the pair 4 × 4 the factor 4 pairs with itself, so the 5 factors are 2 pairs plus 4.

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