Factors of 390

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What are the Factors of 390?

Answer

Factors of 390:

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

16 factors · 390 = 2 × 3 × 5 × 13 · composite

Underlined — prime: 2, 3, 5, 13 · 1 — neither prime nor composite · others — composite

Factor pairs of 390

1 × 390
2 × 195
3 × 130
5 × 78
6 × 65
10 × 39
13 × 30
15 × 26

√390 ≈ 19.75 — the last pair 15 × 26 sits here; past it pairs repeat.

390 = 2 × 3 × 5 × 13 → (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 16 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
375	1, 3, 5, 15, 25, 75, 125, 375
376	1, 2, 4, 8, 47, 94, 188, 376
377	1, 13, 29, 377
378	1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
379	1, 379
380	1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
381	1, 3, 127, 381
382	1, 2, 191, 382
383	1, 383
384	1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384
385	1, 5, 7, 11, 35, 55, 77, 385
386	1, 2, 193, 386
387	1, 3, 9, 43, 129, 387
388	1, 2, 4, 97, 194, 388
389	1, 389
390	1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
391	1, 17, 23, 391
392	1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
393	1, 3, 131, 393
394	1, 2, 197, 394
395	1, 5, 79, 395
396	1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
397	1, 397
398	1, 2, 199, 398
399	1, 3, 7, 19, 21, 57, 133, 399
400	1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
401	1, 401
402	1, 2, 3, 6, 67, 134, 201, 402
403	1, 13, 31, 403
404	1, 2, 4, 101, 202, 404

FAQ

What are the Factors of 390?

Factors of 390: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

How many factors does 390 have?

Number 390 has 16 factors

How many Factor Pairs does 390 have?

Number 390 has 8 factor pairs

Is 390 a prime or composite number?

Composite: 390 = 2 × 3 × 5 × 13, so it has 16 factors — a prime has exactly two.

How many factors does 390 have excluding 1 and 390?

14: 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130 and 195.