Is 148 a prime number?
No, 148 is not a prime number. It is divisible by 2: 148 = 2 × 74.
Is 148 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 √148 ≈ 12.17. If none of them divides 148, it is prime.
- 3
2 divides 148 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 148 = 2^{2} \times 37 \]Testing 148 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 148 ÷ 2 | divides exactly (74) |
| 3 | 148 ÷ 3 | leaves 1 |
| 5 | 148 ÷ 5 | leaves 3 |
| 7 | 148 ÷ 7 | leaves 1 |
| 11 | 148 ÷ 11 | leaves 5 |
Questions
Is 148 a prime number?
No, 148 is not a prime number. It is divisible by 2: 148 = 2 × 74.
What is the next prime after 148?
149.
What is the prime number before 148?
139.
What are the factors of 148?
1, 2, 4, 37, 74, 148.