16 has only one prime factor and it is 2
1,2,5,10
3 and 5
No
By dividing it by the prime factors that have no remainders
2 and 3
1, 3, 11, 33 3 and 11 are prime.
No, 703 is not a prime number.____________________________________________Improved:703 is not a primeFactors of 703 are 1, 19, 37, and 703.
90 = 2 x 3 x 3 x 5 = 2 x 32 x 5
import java.io.*; class PrimeFactors { private boolean prime(int a) { boolean b=true; for(int i=2;i<=(a/2);i++) { if(a%i==0) b=false; } return b; } protected static void main()throws IOException { BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter the Number: "); int a=Integer.parseInt(in.readLine()); PrimeFactors o=new PrimeFactors(); System.out.println("Prime Factors of "+a+" are::"); for(int i=1;i<=(a/2);i++) { if(a%i==0) { boolean b=o.prime(i); if(b==true) System.out.print(i+" "); } } }}
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16 16 16 16 16 16 16 16 16 16 16 16 16 That is 16 written 13 times.
16% of 16= 16% * 16= 0.16 * 16= 2.56