Factors of 321

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What are the Factors of 321?

Answer

Factors of 321:

1, 3, 107, 321

4 factors · 321 = 3 × 107 · composite

Underlined — prime: 3, 107 · 1 — neither prime nor composite · others — composite

Factor pairs of 321

2 pairs: 1 × 321 · 3 × 107

Past √321 ≈ 17.92 every pair would repeat one already found — so checking stops at 17.

321 = 3 × 107 → (1 + 1) × (1 + 1) = 4 factors: add 1 to each exponent and multiply.

Related Calculations

See Also

Prime Number Checker - Find out whether a given number is Prime or not
Prime Factorization - Prime Factorization Calculator
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

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Factors Table

Number	Factors
306	1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306
307	1, 307
308	1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308
309	1, 3, 103, 309
310	1, 2, 5, 10, 31, 62, 155, 310
311	1, 311
312	1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312
313	1, 313
314	1, 2, 157, 314
315	1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
316	1, 2, 4, 79, 158, 316
317	1, 317
318	1, 2, 3, 6, 53, 106, 159, 318
319	1, 11, 29, 319
320	1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
321	1, 3, 107, 321
322	1, 2, 7, 14, 23, 46, 161, 322
323	1, 17, 19, 323
324	1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
325	1, 5, 13, 25, 65, 325
326	1, 2, 163, 326
327	1, 3, 109, 327
328	1, 2, 4, 8, 41, 82, 164, 328
329	1, 7, 47, 329
330	1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330
331	1, 331
332	1, 2, 4, 83, 166, 332
333	1, 3, 9, 37, 111, 333
334	1, 2, 167, 334
335	1, 5, 67, 335

FAQ

What are the Factors of 321?

Factors of 321: 1, 3, 107, 321

How many factors does 321 have?

Number 321 has 4 factors

How many Factor Pairs does 321 have?

Number 321 has 2 factor pairs

Is 321 a prime or composite number?

Composite: 321 = 3 × 107, so it has 4 factors — a prime has exactly two.

How many factors does 321 have excluding 1 and 321?

2: 3 and 107.