Is 480 a prime number?
No, 480 is not a prime number. It is divisible by 2: 480 = 2 × 240.
Is 480 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 √480 ≈ 21.91. If none of them divides 480, it is prime.
- 3
2 divides 480 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 480 = 2^{5} \times 3 \times 5 \]Testing 480 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 480 ÷ 2 | divides exactly (240) |
| 3 | 480 ÷ 3 | divides exactly (160) |
| 5 | 480 ÷ 5 | divides exactly (96) |
| 7 | 480 ÷ 7 | leaves 4 |
| 11 | 480 ÷ 11 | leaves 7 |
| 13 | 480 ÷ 13 | leaves 12 |
| 17 | 480 ÷ 17 | leaves 4 |
| 19 | 480 ÷ 19 | leaves 5 |
Questions
Is 480 a prime number?
No, 480 is not a prime number. It is divisible by 2: 480 = 2 × 240.
What is the next prime after 480?
487.
What is the prime number before 480?
479.
What are the factors of 480?
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480.