Is 150 a prime number?
No, 150 is not a prime number. It is divisible by 2: 150 = 2 × 75.
Is 150 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 √150 ≈ 12.25. If none of them divides 150, it is prime.
- 3
2 divides 150 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 150 = 2 \times 3 \times 5^{2} \]Testing 150 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 150 ÷ 2 | divides exactly (75) |
| 3 | 150 ÷ 3 | divides exactly (50) |
| 5 | 150 ÷ 5 | divides exactly (30) |
| 7 | 150 ÷ 7 | leaves 3 |
| 11 | 150 ÷ 11 | leaves 7 |
Questions
Is 150 a prime number?
No, 150 is not a prime number. It is divisible by 2: 150 = 2 × 75.
What is the next prime after 150?
151.
What is the prime number before 150?
149.
What are the factors of 150?
1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150.