Is 9720 a prime number?
No, 9720 is not a prime number. It is divisible by 2: 9720 = 2 × 4860.
Is 9720 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 √9720 ≈ 98.59. If none of them divides 9720, it is prime.
- 3
2 divides 9720 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 9720 = 2^{3} \times 3^{5} \times 5 \]Testing 9720 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 9720 ÷ 2 | divides exactly (4860) |
| 3 | 9720 ÷ 3 | divides exactly (3240) |
| 5 | 9720 ÷ 5 | divides exactly (1944) |
| 7 | 9720 ÷ 7 | leaves 4 |
| 11 | 9720 ÷ 11 | leaves 7 |
| 13 | 9720 ÷ 13 | leaves 9 |
| 17 | 9720 ÷ 17 | leaves 13 |
| 19 | 9720 ÷ 19 | leaves 11 |
| 23 | 9720 ÷ 23 | leaves 14 |
| 29 | 9720 ÷ 29 | leaves 5 |
| 31 | 9720 ÷ 31 | leaves 17 |
| 37 | 9720 ÷ 37 | leaves 26 |
Questions
Is 9720 a prime number?
No, 9720 is not a prime number. It is divisible by 2: 9720 = 2 × 4860.
What is the next prime after 9720?
9721.
What is the prime number before 9720?
9719.
What are the factors of 9720?
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720.