Is 980 a prime number?
No, 980 is not a prime number. It is divisible by 2: 980 = 2 × 490.
Is 980 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 √980 ≈ 31.30. If none of them divides 980, it is prime.
- 3
2 divides 980 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 980 = 2^{2} \times 5 \times 7^{2} \]Testing 980 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 980 ÷ 2 | divides exactly (490) |
| 3 | 980 ÷ 3 | leaves 2 |
| 5 | 980 ÷ 5 | divides exactly (196) |
| 7 | 980 ÷ 7 | divides exactly (140) |
| 11 | 980 ÷ 11 | leaves 1 |
| 13 | 980 ÷ 13 | leaves 5 |
| 17 | 980 ÷ 17 | leaves 11 |
| 19 | 980 ÷ 19 | leaves 11 |
| 23 | 980 ÷ 23 | leaves 14 |
| 29 | 980 ÷ 29 | leaves 23 |
| 31 | 980 ÷ 31 | leaves 19 |
Questions
Is 980 a prime number?
No, 980 is not a prime number. It is divisible by 2: 980 = 2 × 490.
What is the next prime after 980?
983.
What is the prime number before 980?
977.
What are the factors of 980?
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980.