Modular Arithmetic Calculator
Perform modular arithmetic operations.
This Modular Arithmetic Calculator allows you to calculate or convert values instantly. It is free, fast, and easy to use.
- Free Online Tool
- Instant Results
- Mobile Friendly
- No Installation
- Secure & Private
Understanding This Calculator
Modular Arithmetic
Calculates the remainder when a number is divided by n.
a mod n = r (where a = nq + r, 0 ≤ r < n)
Congruence: a ≡ b (mod n) if n divides (a - b)
Example 1
17 mod 5
- 17 = 5(3) + 2
- Result: 2
Example 2
Check: 25 ≡ 11 (mod 7)?
- 25 - 11 = 14
- 14 is divisible by 7? Yes.
- True
How to Use
- Enter two numbers a and b.
- Enter modulus n.
Frequently Asked Questions
How do I use the Modular Arithmetic Calculator?
Enter your values in the input fields, and the result will appear instantly.
Is this calculator free to use?
Yes, this calculator is 100% free and does not require any registration or subscription.
Is it mobile-friendly?
Absolutely! Our tool is optimized for all devices, including mobile phones, tablets, and desktop computers.