Is 740 a prime number?
No, 740 is not a prime number. It is divisible by 2: 740 = 2 × 370.
Is 740 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 √740 ≈ 27.20. If none of them divides 740, it is prime.
- 3
2 divides 740 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 740 = 2^{2} \times 5 \times 37 \]Testing 740 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 740 ÷ 2 | divides exactly (370) |
| 3 | 740 ÷ 3 | leaves 2 |
| 5 | 740 ÷ 5 | divides exactly (148) |
| 7 | 740 ÷ 7 | leaves 5 |
| 11 | 740 ÷ 11 | leaves 3 |
| 13 | 740 ÷ 13 | leaves 12 |
| 17 | 740 ÷ 17 | leaves 9 |
| 19 | 740 ÷ 19 | leaves 18 |
| 23 | 740 ÷ 23 | leaves 4 |
Questions
Is 740 a prime number?
No, 740 is not a prime number. It is divisible by 2: 740 = 2 × 370.
What is the next prime after 740?
743.
What is the prime number before 740?
739.
What are the factors of 740?
1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740.