Is 273 a prime number?
No, 273 is not a prime number. It is divisible by 3: 273 = 3 × 91.
Is 273 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 √273 ≈ 16.52. If none of them divides 273, it is prime.
- 3
3 divides 273 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 273 = 3 \times 7 \times 13 \]
Testing 273 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 273 ÷ 2 | leaves 1 |
| 3 | 273 ÷ 3 | divides exactly (91) |
| 5 | 273 ÷ 5 | leaves 3 |
| 7 | 273 ÷ 7 | divides exactly (39) |
| 11 | 273 ÷ 11 | leaves 9 |
| 13 | 273 ÷ 13 | divides exactly (21) |
Questions
Is 273 a prime number?
No, 273 is not a prime number. It is divisible by 3: 273 = 3 × 91.
What is the next prime after 273?
277.
What is the prime number before 273?
271.
What are the factors of 273?
1, 3, 7, 13, 21, 39, 91, 273.