Is 102 a prime number?
No, 102 is not a prime number. It is divisible by 2: 102 = 2 × 51.
Is 102 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 √102 ≈ 10.10. If none of them divides 102, it is prime.
- 3
2 divides 102 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 102 = 2 \times 3 \times 17 \]
Testing 102 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 102 ÷ 2 | divides exactly (51) |
| 3 | 102 ÷ 3 | divides exactly (34) |
| 5 | 102 ÷ 5 | leaves 2 |
| 7 | 102 ÷ 7 | leaves 4 |
Questions
Is 102 a prime number?
No, 102 is not a prime number. It is divisible by 2: 102 = 2 × 51.
What is the next prime after 102?
103.
What is the prime number before 102?
101.
What are the factors of 102?
1, 2, 3, 6, 17, 34, 51, 102.