Is 164 a prime number?
No, 164 is not a prime number. It is divisible by 2: 164 = 2 × 82.
Is 164 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 √164 ≈ 12.81. If none of them divides 164, it is prime.
- 3
2 divides 164 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 164 = 2^{2} \times 41 \]Testing 164 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 164 ÷ 2 | divides exactly (82) |
| 3 | 164 ÷ 3 | leaves 2 |
| 5 | 164 ÷ 5 | leaves 4 |
| 7 | 164 ÷ 7 | leaves 3 |
| 11 | 164 ÷ 11 | leaves 10 |
Questions
Is 164 a prime number?
No, 164 is not a prime number. It is divisible by 2: 164 = 2 × 82.
What is the next prime after 164?
167.
What is the prime number before 164?
163.
What are the factors of 164?
1, 2, 4, 41, 82, 164.