Is 118 a prime number?
No, 118 is not a prime number. It is divisible by 2: 118 = 2 × 59.
Is 118 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 √118 ≈ 10.86. If none of them divides 118, it is prime.
- 3
2 divides 118 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 118 = 2 \times 59 \]
Testing 118 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 118 ÷ 2 | divides exactly (59) |
| 3 | 118 ÷ 3 | leaves 1 |
| 5 | 118 ÷ 5 | leaves 3 |
| 7 | 118 ÷ 7 | leaves 6 |
Questions
Is 118 a prime number?
No, 118 is not a prime number. It is divisible by 2: 118 = 2 × 59.
What is the next prime after 118?
127.
What is the prime number before 118?
113.
What are the factors of 118?
1, 2, 59, 118.