How do you find prime numbers in Cobol?
How do you find prime numbers in Cobol?
MOVE 2 TO I. PERFORM UNTIL I >= N DIVIDE N BY I GIVING Q REMAINDER REM IF REM = 0 THEN DISPLAY ‘GIVEN NUMBER IS NOT PRIME’ STOP RUN END-IF ADD 1 TO I END-PERFORM. DISPLAY-PARA. IF N = I THEN DISPLAY ‘GIVEN NUMBER IS PRIME’ END-IF.
Is prime number program?
Program to Check Prime Number In the program, a for loop is iterated from i = 2 to i < n/2 . If n is perfectly divisible by i , n is not a prime number. In this case, flag is set to 1, and the loop is terminated using the break statement. So, if n is a prime number after the loop, flag will still be 0.
How do you find prime numbers in programming?
- #include
- int main(){
- int n,i,m=0,flag=0;
- printf(“Enter the number to check prime:”);
- scanf(“%d”,&n);
- m=n/2;
- for(i=2;i<=m;i++)
- {
How do you declare a prime number?
To prove whether a number is a prime number, first try dividing it by 2, and see if you get a whole number. If you do, it can’t be a prime number. If you don’t get a whole number, next try dividing it by prime numbers: 3, 5, 7, 11 (9 is divisible by 3) and so on, always dividing by a prime number (see table below).
Why 1 is not a prime number?
Definition: A prime number is a whole number with exactly two integral divisors, 1 and itself. The number 1 is not a prime, since it has only one divisor.
Can negative numbers be prime?
Answer One: No. By the usual definition of prime for integers, negative integers can not be prime. By this definition, primes are integers greater than one with no positive divisors besides one and itself. Negative numbers are excluded.
What is the smallest prime number?
2
2 is the smallest prime number. It also the only even prime number – all other even numbers can be divided by themselves, 1 and 2 at least, meaning they will have at least 3 factors.
Why are there no negative primes?
Answer One: No. By the usual definition of prime for integers, negative integers can not be prime. By this definition, primes are integers greater than one with no positive divisors besides one and itself. Negative numbers are excluded. In fact, they are given no thought.
Is 15 and 37 coprime numbers?
As they have no common factors, 15 and 37 are co-prime numbers. As they have no common factors, 216 and 215 are coprime numbers.
How to display a prime number in COBOL?
ACCEPT num1. PERFORM VARYING i1 FROM 2 BY 1 UNTIL i1>=num1 DIVIDE num1 BY i1 GIVING res1 REMAINDER rem1 IF rem1=0 THEN MOVE 1 TO flag1 * DISPLAY i1 ” ” rem1 END-PERFORM. IF flag1=0 THEN DISPLAY num1 ” is prime”else DISPLAY num1 ” IS NOT A PRIME NO”.
How to display input number is prime or not?
DISPLAY “ENTER NUMBER FOR CHECKING PRIME OR NOT” . ACCEPT num1. PERFORM VARYING i1 FROM 2 BY 1 UNTIL i1>=num1 DIVIDE num1 BY i1 GIVING res1 REMAINDER rem1 IF rem1=0 THEN MOVE 1 TO flag1 * DISPLAY i1 ” ” rem1 END-PERFORM. IF flag1=0 THEN DISPLAY num1 ” is prime”else DISPLAY num1 ” IS NOT A PRIME NO”.
How to check if a no is prime?
PROGRAM WHICH TAKE THE NO & FIND WHETHER THE NO IS PRIME OR NOT. IDENTIFICATION DIVISION. PROGRAM-ID. primeno. DATA DIVISION. 01 num1 PIC 999. 01 i1 PIC 999. 01 res1 PIC 99. 01 rem1 PIC 99. 01 flag1 PIC 9 value 0. PROCEDURE DIVISION. para1. DISPLAY “ENTER NUMBER FOR CHECKING PRIME OR NOT” . ACCEPT num1.