even, composite, triangular · 10th positive integer
The number 10
10 is an even composite number. It's known as the base of the decimal system and the number of fingers on two hands. It is the 10th positive integer.
Quick reference
| Prime factorization | 2 × 5 |
| Divisors | 1, 2, 5, 10 |
| Binary | 1010 |
| Hexadecimal | 0xA |
| Roman numeral | X |
| Digit sum | 1 |
| Properties | even, composite, triangular |
Why 10 is notable
The base of the decimal system and the number of fingers on two hands.
Frequently asked
Is 10 a prime number?
No. 10 is composite. Its prime factorization is 2 × 5.
What are the factors of 10?
The factors (divisors) of 10 are 1, 2, 5, 10.
What is 10 in binary?
10 in binary is 1010. In hexadecimal it's A.
What is 10 as a Roman numeral?
10 in Roman numerals is X.
What's the digit sum of 10?
Adding the digits of 10: 1 + 0 = 1.