What is 100 mod 9?
100 mod 9 equals 1, because 100 divided by 9 leaves a remainder of 1.
How to use this tool
- Enter dividend (a) and divisor (b) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your remainder (a mod b) and the full breakdown beneath it.
100 mod 9 is 1 — the remainder when 100 is divided by 9.
Frequently asked questions
- What is the modulo operation?
- The modulo (%) returns the remainder of a division. For example, 17 mod 5 = 2 because 17 = 3×5 + 2.