# C Program to Find the Largest of three Numbers2 min read

In this tutorial, we will write a basic C Program to find the greatest of three numbers. You may go through the following topics in order to understand the C program.

### Algorithm to find the largest among three numbers

1.  Start.
2. Read num1, num2 and num3 from user.
3. Check num > num2, if true go to step 4 else go to step 5
4. Check num1 > num3.
• If true, print ‘num1 is the greatest number’.
• If false, then print ‘num3 as the greatest number’.
• go to step 6
5. check if num2 > num3.
1. If true, print ‘num2 as the greatest number’.
2. If false, print ‘num3 as the greatest number’.
6. Stop

## C Program to find the Largest among three Numbers

We will find the greatest of three using if..else and if…else-if statement.

Output:

`Enter three numbers to compare. First Number: 32 Second Number: 65 Third Number: 19 Largest number: 65`

## Using Ternary operator

The ternary operator works like an if..else statement in C. Syntax of the ternary operator. (`?:`)

`variable num1 = (expression) ? value if true : value if false`

Output:

`Enter three numbers to compare. First Number: 45 Second Number: 98 Third Number: 66 Largest of three is: 98`

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