Sum of Digits of 858
ANSWER : 21
The sum of the digits in the number 858 is: 8 + 5 + 8 = 21
How to Calculate the Digit Sum of 858?
To find the sum of digits of a number, simply break it into individual digits and add them. For 858:
8 + 5 + 8 = 21
The digits of 858 are: 8, 5, 8.
Their sum is: 21
Step-by-Step Digit Sum of 858
We split the number 858 into its individual digits: 8 + 5 + 8 = 21
Digit Positions in 858
| Position | Digit |
|---|---|
| 1 | 8 |
| 2 | 5 |
| 3 | 8 |
Length of 858
The number 858 has 3 digits.
Is 21 a Prime Number?
No, 21 is not a prime number.
Digit Sums in Other Bases
- Binary: 1101011010 → 6
- Octal: 1532 → 11
- Hexadecimal: 35A → 18