Is 59 Prime?

Check if 59 is a prime number. A prime number is only divisible by 1 and itself.

Is prime?
Result: ✓ YES — 59 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 59 is prime, we need to verify that no number from 2 to √59 divides it evenly.

Step 2 Determine Testing Range

Since 59 is odd, we only need to check odd divisors.


We only need to test up to √59 ≈ 7.68, which rounds down to 7.


If 59 has a factor larger than √59, it must also have a corresponding factor smaller than √59.

Step 3 Test Odd Divisors

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


59 ÷ 3 = 19 remainder 2
59 ÷ 5 = 11 remainder 4
59 ÷ 7 = 8 remainder 3

None of these numbers divide 59 evenly.

Step 4 Conclusion

59 has no divisors between 2 and 7.


The only factors of 59 are 1 and 59 itself.


Therefore, 59 is a PRIME number!