Is 79 a prime number?
Yes, 79 is a prime number. Its only factors are 1 and 79.
Is 79 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 √79 ≈ 8.89. If none of them divides 79, it is prime.
- 3
None of them divides 79, so it is prime.
Testing 79 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 79 ÷ 2 | leaves 1 |
| 3 | 79 ÷ 3 | leaves 1 |
| 5 | 79 ÷ 5 | leaves 4 |
| 7 | 79 ÷ 7 | leaves 2 |
Questions
Is 79 a prime number?
Yes, 79 is a prime number. Its only factors are 1 and 79.
What is the next prime after 79?
83.
What is the prime number before 79?
73.
What are the factors of 79?
1, 79.