Is 37 Prime?

Check if 37 is a prime number. A prime number is only divisible by 1 and itself.

Is prime?
Result: ✓ YES — 37 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 37 is prime, we need to verify that no number from 2 to √37 divides it evenly.

Step 2 Determine Testing Range

Since 37 is odd, we only need to check odd divisors.


We only need to test up to √37 ≈ 6.08, which rounds down to 6.


If 37 has a factor larger than √37, it must also have a corresponding factor smaller than √37.

Step 3 Test Odd Divisors

Testing: 3, 5, 7, ... up to 6


37 ÷ 3 = 12 remainder 1
37 ÷ 5 = 7 remainder 2

None of these numbers divide 37 evenly.

Step 4 Conclusion

37 has no divisors between 2 and 6.


The only factors of 37 are 1 and 37 itself.


Therefore, 37 is a PRIME number!