Is 7988 a prime number?
No, 7988 is not a prime number. It is divisible by 2: 7988 = 2 × 3994.
Is 7988 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 √7988 ≈ 89.38. If none of them divides 7988, it is prime.
- 3
2 divides 7988 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 7988 = 2^{2} \times 1997 \]Testing 7988 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 7988 ÷ 2 | divides exactly (3994) |
| 3 | 7988 ÷ 3 | leaves 2 |
| 5 | 7988 ÷ 5 | leaves 3 |
| 7 | 7988 ÷ 7 | leaves 1 |
| 11 | 7988 ÷ 11 | leaves 2 |
| 13 | 7988 ÷ 13 | leaves 6 |
| 17 | 7988 ÷ 17 | leaves 15 |
| 19 | 7988 ÷ 19 | leaves 8 |
| 23 | 7988 ÷ 23 | leaves 7 |
| 29 | 7988 ÷ 29 | leaves 13 |
| 31 | 7988 ÷ 31 | leaves 21 |
| 37 | 7988 ÷ 37 | leaves 33 |
Questions
Is 7988 a prime number?
No, 7988 is not a prime number. It is divisible by 2: 7988 = 2 × 3994.
What is the next prime after 7988?
7993.
What is the prime number before 7988?
7963.
What are the factors of 7988?
1, 2, 4, 1997, 3994, 7988.