Is 29 Prime?

Check if 29 is a prime number. A prime number is only divisible by 1 and itself.

Is prime?
Result: ✓ YES — 29 is a prime number
Step-by-Step Solution
Step 1 What is a Prime Number?

A prime number is a natural number greater than 1 that has exactly two factors: 1 and itself.


To check if 29 is prime, we need to verify that no number from 2 to √29 divides it evenly.

Step 2 Determine Testing Range

Since 29 is odd, we only need to check odd divisors.


We only need to test up to √29 ≈ 5.39, which rounds down to 5.


If 29 has a factor larger than √29, it must also have a corresponding factor smaller than √29.

Step 3 Test Odd Divisors

Testing: 3, 5, 7, ... up to 5


29 ÷ 3 = 9 remainder 2
29 ÷ 5 = 5 remainder 4

None of these numbers divide 29 evenly.

Step 4 Conclusion

29 has no divisors between 2 and 5.


The only factors of 29 are 1 and 29 itself.


Therefore, 29 is a PRIME number!