Is 955 a prime number?
No, 955 is not a prime number. It is divisible by 5: 955 = 5 × 191.
Is 955 prime?
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A prime number has exactly two factors: 1 and itself.
- 2
It is enough to test the primes up to √955 ≈ 30.90. If none of them divides 955, it is prime.
- 3
5 divides 955 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 955 = 5 \times 191 \]
Testing 955 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 955 ÷ 2 | leaves 1 |
| 3 | 955 ÷ 3 | leaves 1 |
| 5 | 955 ÷ 5 | divides exactly (191) |
| 7 | 955 ÷ 7 | leaves 3 |
| 11 | 955 ÷ 11 | leaves 9 |
| 13 | 955 ÷ 13 | leaves 6 |
| 17 | 955 ÷ 17 | leaves 3 |
| 19 | 955 ÷ 19 | leaves 5 |
| 23 | 955 ÷ 23 | leaves 12 |
| 29 | 955 ÷ 29 | leaves 27 |
Questions
Is 955 a prime number?
No, 955 is not a prime number. It is divisible by 5: 955 = 5 × 191.
What is the next prime after 955?
967.
What is the prime number before 955?
953.
What are the factors of 955?
1, 5, 191, 955.