Factors of 144

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What are the Factors of 144?

Answer

Factors of 144:
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

15 factors · 144 = 24 × 32 · composite

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

Factor pairs of 144

  • 1 × 144
  • 2 × 72
  • 3 × 48
  • 4 × 36
  • 6 × 24
  • 8 × 18
  • 9 × 16
  • 12 × 12

12 × 12 is a pair of one factor — that is why 144 has an odd number of factors, 15.

144 = 24 × 32 → (4 + 1) × (2 + 1) = 15 factors: add 1 to each exponent and multiply.

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Factors Table

NumberFactors
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
1531, 3, 9, 17, 51, 153
1541, 2, 7, 11, 14, 22, 77, 154
1551, 5, 31, 155
1561, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
1571, 157
1581, 2, 79, 158

FAQ

What are the Factors of 144?

Factors of 144: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

How many factors does 144 have?

Number 144 has 15 factors

How many Factor Pairs does 144 have?

Number 144 has 8 factor pairs

Is 144 a prime or composite number?

Composite: 144 = 2⁴ × 3², so it has 15 factors — a prime has exactly two.

How many factors does 144 have excluding 1 and 144?

13: 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48 and 72.

Why does 144 have an odd number of factors?

144 is a perfect square: in the pair 12 × 12 the factor 12 pairs with itself, so the 15 factors are 7 pairs plus 12.

See Also