Factors of 231

"Factors of a Number" Calculator
Factors of

What are the Factors of 231?

Answer

Factors of 231:
1, 3, 7, 11, 21, 33, 77, 231

8 factors · 231 = 3 × 7 × 11 · composite

Underlined — prime: 3, 7, 11 · 1 — neither prime nor composite · others — composite

Factor pairs of 231

√231 ≈ 15.2013711213377231

4 pairs: 1 × 231 · 3 × 77 · 7 × 33 · 11 × 21

Past √231 ≈ 15.20 every pair would repeat one already found — so checking stops at 15.

231 = 3 × 7 × 11 → (1 + 1) × (1 + 1) × (1 + 1) = 8 factors: add 1 to each exponent and multiply.

Related Calculations

See Also

Recalculate with different values ↑

Factors Table

NumberFactors
2161, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
2171, 7, 31, 217
2181, 2, 109, 218
2191, 3, 73, 219
2201, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
2211, 13, 17, 221
2221, 2, 3, 6, 37, 74, 111, 222
2231, 223
2241, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224
2251, 3, 5, 9, 15, 25, 45, 75, 225
2261, 2, 113, 226
2271, 227
2281, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228
2291, 229
2301, 2, 5, 10, 23, 46, 115, 230
2311, 3, 7, 11, 21, 33, 77, 231
2321, 2, 4, 8, 29, 58, 116, 232
2331, 233
2341, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234
2351, 5, 47, 235
2361, 2, 4, 59, 118, 236
2371, 3, 79, 237
2381, 2, 7, 14, 17, 34, 119, 238
2391, 239
2401, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
2411, 241
2421, 2, 11, 22, 121, 242
2431, 3, 9, 27, 81, 243
2441, 2, 4, 61, 122, 244
2451, 5, 7, 35, 49, 245

FAQ

What are the Factors of 231?

Factors of 231: 1, 3, 7, 11, 21, 33, 77, 231

How many factors does 231 have?

Number 231 has 8 factors

How many Factor Pairs does 231 have?

Number 231 has 4 factor pairs

Is 231 a prime or composite number?

Composite: 231 = 3 × 7 × 11, so it has 8 factors — a prime has exactly two.

How many factors does 231 have excluding 1 and 231?

6: 3, 7, 11, 21, 33 and 77.

See Also