Is 5 a prime number?
Yes, 5 is a prime number. Its only factors are 1 and 5.
Is 5 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 ā5 ā 2.24. If none of them divides 5, it is prime.
- 3
None of them divides 5, so it is prime.
Testing 5 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 5 Ć· 2 | leaves 1 |
Questions
Is 5 a prime number?
Yes, 5 is a prime number. Its only factors are 1 and 5.
What is the next prime after 5?
7.
What is the prime number before 5?
3.
What are the factors of 5?
1, 5.