write a program to input a number and check number is composite or not .A number which have more than two factors is called composite number.

Answers 2

Answer: class composite{

static void check(int a)//a is the number to be checked

{int n=0;//n is number of a’s factors

for(int i=1;i<=a;i++){

if(a%i==0)

n++;}

if(n>2)

System.out.println(a+” is a composite number”);

else

System.out.println(a+” is a prime number”);

}}

Answer:

1-To check and display whether a number input by the user is a composite number or not.

A number is said to be composite, if it has one or more than one factors excluding 1 and the number itself.

Example: 4, 6, 8, 9…

2-To find the smallest digit of an integer that is input:

Sample input: 6524

Sample output: Smallest digit is 2

For an incorrect choice, an appropriate error message should be displayed.