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    Factors of 138

    "Factors of a Number" Calculator
    Factors of

    What are the Factors of 138?

    Answer

    Factors of 138:
    1, 2, 3, 6, 23, 46, 69, 138

    8 factors · 138 = 2 × 3 × 23 · composite

    Underlined — prime: 2, 3, 23 · 1 — neither prime nor composite · others — composite

    Factor pairs of 138

    √138 ≈ 11.751236234669138

    4 pairs: 1 × 138 · 2 × 69 · 3 × 46 · 6 × 23

    Past √138 ≈ 11.75 every pair would repeat one already found — so checking stops at 11.

    138 = 2 × 3 × 23 → (1 + 1) × (1 + 1) × (1 + 1) = 8 factors: add 1 to each exponent and multiply.

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    Factors of 138. Factors of 138: full list and factor pairs.
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    Factors Table

    NumberFactors
    1231, 3, 41, 123
    1241, 2, 4, 31, 62, 124
    1251, 5, 25, 125
    1261, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
    1271, 127
    1281, 2, 4, 8, 16, 32, 64, 128
    1291, 3, 43, 129
    1301, 2, 5, 10, 13, 26, 65, 130
    1311, 131
    1321, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132
    1331, 7, 19, 133
    1341, 2, 67, 134
    1351, 3, 5, 9, 15, 27, 45, 135
    1361, 2, 4, 8, 17, 34, 68, 136
    1371, 137
    1381, 2, 3, 6, 23, 46, 69, 138
    1391, 139
    1401, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
    1411, 3, 47, 141
    1421, 2, 71, 142
    1431, 11, 13, 143
    1441, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
    1451, 5, 29, 145
    1461, 2, 73, 146
    1471, 3, 7, 21, 49, 147
    1481, 2, 4, 37, 74, 148
    1491, 149
    1501, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150
    1511, 151
    1521, 2, 4, 8, 19, 38, 76, 152
    Recalculate with different values ↑

    FAQ

    What are the Factors of 138?

    Factors of 138: 1, 2, 3, 6, 23, 46, 69, 138

    How many factors does 138 have?

    Number 138 has 8 factors

    How many Factor Pairs does 138 have?

    Number 138 has 4 factor pairs

    Is 138 a prime or composite number?

    Composite: 138 = 2 × 3 × 23, so it has 8 factors — a prime has exactly two.

    How many factors does 138 have excluding 1 and 138?

    6: 2, 3, 6, 23, 46 and 69.

    See Also