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    Factors of 189

    "Factors of a Number" Calculator
    Factors of

    What are the Factors of 189?

    Answer

    Factors of 189:
    1, 3, 7, 9, 21, 27, 63, 189

    8 factors · 189 = 33 × 7 · composite

    Underlined — prime: 3, 7 · 1 — neither prime nor composite · others — composite

    Factor pairs of 189

    √189 ≈ 13.751379212763189

    4 pairs: 1 × 189 · 3 × 63 · 7 × 27 · 9 × 21

    Past √189 ≈ 13.75 every pair would repeat one already found — so checking stops at 13.

    189 = 33 × 7 → (3 + 1) × (1 + 1) = 8 factors: add 1 to each exponent and multiply.

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    Factors of 189. Factors of 189: full list and factor pairs.
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    Factors Table

    NumberFactors
    1741, 2, 3, 6, 29, 58, 87, 174
    1751, 5, 7, 25, 35, 175
    1761, 2, 4, 8, 11, 16, 22, 44, 88, 176
    1771, 3, 59, 177
    1781, 2, 89, 178
    1791, 179
    1801, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
    1811, 181
    1821, 2, 7, 13, 14, 26, 91, 182
    1831, 3, 61, 183
    1841, 2, 4, 8, 23, 46, 92, 184
    1851, 5, 37, 185
    1861, 2, 3, 6, 31, 62, 93, 186
    1871, 11, 17, 187
    1881, 2, 4, 47, 94, 188
    1891, 3, 7, 9, 21, 27, 63, 189
    1901, 2, 5, 10, 19, 38, 95, 190
    1911, 191
    1921, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192
    1931, 193
    1941, 2, 97, 194
    1951, 3, 5, 13, 15, 39, 65, 195
    1961, 2, 4, 7, 14, 28, 49, 98, 196
    1971, 197
    1981, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
    1991, 199
    2001, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200
    2011, 3, 67, 201
    2021, 2, 101, 202
    2031, 7, 29, 203
    Recalculate with different values ↑

    FAQ

    What are the Factors of 189?

    Factors of 189: 1, 3, 7, 9, 21, 27, 63, 189

    How many factors does 189 have?

    Number 189 has 8 factors

    How many Factor Pairs does 189 have?

    Number 189 has 4 factor pairs

    Is 189 a prime or composite number?

    Composite: 189 = 3³ × 7, so it has 8 factors — a prime has exactly two.

    How many factors does 189 have excluding 1 and 189?

    6: 3, 7, 9, 21, 27 and 63.

    See Also