Sum of Digits of 821
ANSWER : 11
The sum of the digits in the number 821 is: 8 + 2 + 1 = 11
How to Calculate the Digit Sum of 821?
To find the sum of digits of a number, simply break it into individual digits and add them. For 821:
8 + 2 + 1 = 11
The digits of 821 are: 8, 2, 1.
Their sum is: 11
Step-by-Step Digit Sum of 821
We split the number 821 into its individual digits: 8 + 2 + 1 = 11
Digit Positions in 821
| Position | Digit |
|---|---|
| 1 | 8 |
| 2 | 2 |
| 3 | 1 |
Length of 821
The number 821 has 3 digits.
Is 11 a Prime Number?
Yes, 11 is a prime number.
Digit Sums in Other Bases
- Binary: 1100110101 → 6
- Octal: 1465 → 16
- Hexadecimal: 335 → 11