Is 98 a prime number?
No, 98 is not a prime number. It is divisible by 2: 98 = 2 × 49.
Is 98 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 √98 ≈ 9.90. If none of them divides 98, it is prime.
- 3
2 divides 98 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 98 = 2 \times 7^{2} \]Testing 98 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 98 ÷ 2 | divides exactly (49) |
| 3 | 98 ÷ 3 | leaves 2 |
| 5 | 98 ÷ 5 | leaves 3 |
| 7 | 98 ÷ 7 | divides exactly (14) |
Questions
Is 98 a prime number?
No, 98 is not a prime number. It is divisible by 2: 98 = 2 × 49.
What is the next prime after 98?
101.
What is the prime number before 98?
97.
What are the factors of 98?
1, 2, 7, 14, 49, 98.