Factors of 1105
The factors of 1105 are 1, 5, 13, 17, 65, 85, 221, 1105. It has 8 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 1105 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1105 ≈ 33.24; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 8 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 5 + 13 + 17 + 65 + 85 + 221 + 1105 = 1512. Without 1105 itself that is 407, so 1105 is a deficient number.
LaTeX source of the formulas on this page
\[ 1105 = 5 \times 13 \times 17 \]
Factor pairs of 1105
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 1105 | 1 × 1105 = 1105 |
| 5 | 221 | 5 × 221 = 1105 |
| 13 | 85 | 13 × 85 = 1105 |
| 17 | 65 | 17 × 65 = 1105 |
Questions
What are the factors of 1105?
The factors of 1105 are 1, 5, 13, 17, 65, 85, 221, 1105. It has 8 factors.
What are the prime factors of 1105?
5, 13, 17. As a product: 5 × 13 × 17.
How many factors does 1105 have?
1105 has 8 factors (4 factor pairs).
What is the sum of the factors of 1105?
1512.
Is 1105 a prime number?
No. It is divisible by 5, so 1105 = 5 × 221.