Factors of 324

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What are the Factors of 324?

Answer

Factors of 324:

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324

15 factors · 324 = 2² × 3⁴ · composite

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

Factor pairs of 324

1 × 324
2 × 162
3 × 108
4 × 81
6 × 54
9 × 36
12 × 27
18 × 18

18 × 18 is a pair of one factor — that is why 324 has an odd number of factors, 15.

324 = 2² × 3⁴ → (2 + 1) × (4 + 1) = 15 factors: add 1 to each exponent and multiply.

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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
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
336	1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336
337	1, 337
338	1, 2, 13, 26, 169, 338

FAQ

What are the Factors of 324?

Factors of 324: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324

How many factors does 324 have?

Number 324 has 15 factors

How many Factor Pairs does 324 have?

Number 324 has 8 factor pairs

Is 324 a prime or composite number?

Composite: 324 = 2² × 3⁴, so it has 15 factors — a prime has exactly two.

How many factors does 324 have excluding 1 and 324?

13: 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108 and 162.

Why does 324 have an odd number of factors?

324 is a perfect square: in the pair 18 × 18 the factor 18 pairs with itself, so the 15 factors are 7 pairs plus 18.