Factors of 37
The factors of 37 are 1, 37. Yes, 37 is a prime number. Its only factors are 1 and 37.
Factor pairs of 37
Every factor has a partner that multiplies with it to give 37. Listing pairs from the outside in is the fastest way to find all the factors: once the two numbers in a pair meet in the middle, you have them all.
| Pair | Check |
|---|---|
| 1 and 37 | 1 × 37 = 37 |
Prime factorization of 37, step by step
37 is prime, so the ladder is one rung: nothing smaller than 37 divides it except 1. To confirm, you only need to test primes up to √37 ≈ 6: 37 ÷ 2 leaves 1; 37 ÷ 3 leaves 1; 37 ÷ 5 leaves 2.
Divisibility checks for 37
The quick rules a student uses before dividing, applied to 37:
| Divisible by | Rule | For 37 | Result |
|---|---|---|---|
| 2 | last digit is even | last digit 7 | no |
| 3 | digit sum divisible by 3 | digits add to 10 | no |
| 4 | last two digits divisible by 4 | 37 ÷ 4 | no |
| 5 | last digit is 0 or 5 | last digit 7 | no |
| 6 | divisible by both 2 and 3 | odd, digit sum 10 | no |
| 8 | last three digits divisible by 8 | 37 ÷ 8 | no |
| 9 | digit sum divisible by 9 | digits add to 10 | no |
| 10 | last digit is 0 | last digit 7 | no |
Frequently Asked Questions
What are the factors of 37?
The factors of 37 are 1, 37.
Is 37 a prime number?
Yes, 37 is a prime number. Its only factors are 1 and 37.
How many factors does 37 have?
37 has 2 factors.
Is 37 even or odd?
37 is odd (2 is not a factor).
What is the sum of the factors of 37?
1 + 37 = 38. Leaving out 37 itself, the proper factors add to 1, less than 37, so 37 is a deficient number.
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