Let us see the C++ Program to check whether a number is a prime or composite number.

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// C++ Program to check whether a number is a prime or composite number. by T4Tutorials.com #include<iostream> using namespace std; int main() { int i,n,c=0; cout<<"Enter a number"<<endl; cin>>n; for (i=1;i<=n;i++) { if(n%i==0) c=c+1; } if (c==2) cout<<"The number is a Prime number"<<endl; else cout<<"The number is a Composite number"<<endl; return 0; } |

**Output**

Enter a number

4

The number is a Composite number

## C++ Exercise | If else Statement

- calculate the bill
- character is small, capital or a special character
- a number is even or odd
- 0 is a positive or negative number
- a positive and negative number
- Enter Range of numbers and replaced them
- a greater number among three numbers
- Armstrong Number
- ASCII code
- Find the Maximum value program in C++ (C Plus Plus).
- maximum number
- Maximum Number between two numbers
- Student Grade
- the number is divisible by 11 or 5 or not
- Triangle
- a triangle is an equilateral, isosceles or scalene
- Leap year
- character is an alphabet or not
- Grade Percentage
- character is an alphabet, digit, or special character
- character is an uppercase or lowercase.
- Weekdays
- a prime or composite number
- hours and minutes as AM or PM
- swap the values of two numbers
- update even to odd
- Profit Loss
- centimeter into meter and kilometer
- Triangle
- Salary
- Even odd with goto statement.
- area of the circle

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