Therefore, 7 % 4 = 3. Modulus only works with integer operands. The Arithmetic operators are some of the C Programming Operator, which are used to perform arithmetic operations includes operators like Addition, Subtraction, Multiplication, Division and Modulus. In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another (called the modulus of the operation).. Calculation. rem = a%b; 2) Without using modulus (%) operator . Operators that are in the same cell (there may be several rows of operators listed in a cell) are evaluated with the same precedence, in the given direction. rem = a-(a/b)*b; Here, a and b are the input numbers. Formulas to get the remainder, 1) Using modulus (%) operator . In this tutorial, we shall learn how to use Arithmetic Modulus Operator with values of different datatypes using example programs. C program to find the remainder of two numbers without using modulus (%) operator  The modulus operator is useful in a variety of circumstances. Consider, for instance, the following C code: int remainder = value % 1024; It can be translated into: int remainder = value & 0x3FF; In general, if divisor is a power n of two, the modulo operation can be translated to a bitwise AND with divisor-1. The operator takes two operands and returns the reminder after performing division of dividend by divisor. % is called the modulo operation. Here, 9 / 4 = 2 and 9 % 4 = 1. Now in some cases you absolutely have to use the modulus operator. The modulus operator - or more precisely, the modulo operation - is a way to determine the remainder of a division operation. As a result it’s hardly surprising that code that uses the modulus operator can take a long time to execute. It is commonly used to take a randomly generated number and reduce that number to a random number on a smaller range, and it can also quickly tell you if one number is a factor of another. The modulus operator (also informally known as the remainder operator) is an operator that returns the remainder after doing an integer division. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. The Modulus is the remainder of the euclidean division of one number by another. Modulo (‘%’) (often referred as modulus operator) is an arithmetic operator in all programming languages (C, C++, Python etc etc), that finds the remainder when two numbers are divided. For example, 7 / 4 = 1 remainder 3. Some examples may help illustrate this, as it’s not necessarily intuitive the first time you encounter it: Modulus is the remainder when two numbers are divided. 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