# Print prime numbers in Javascript

prime number is a number that can be divided exactly only by itself and 1. for ex: 3,5,7,9,11, 13,17, etc.., If we want to print prime numbers in javascript, we must use for loop.

## Example code

```
//input the higher number
const higher number = parseInt(prompt('Enter number: '));
//printing
console.log(`The prime numbers between 1 and ${higherNumber} are:`);
//creating for loop from 0 to user input number
for (let i = 1; i <= higherNumber; i++) {
let flag = 0;
// looping through 2 to user input number
for (let j = 2; j < i; j++) {
if (i % j == 0) {
flag = 1;
break;
} }
// if number greater than 1 and not divisible by other numbers
if (i > 1 && flag == 0) {
console.log(i);
} }
```

Steps:

- In the above code, we have to get the input ‘higherNumber’ for the ending value of the loop.
- Then we created for loop and inside it, we initialized the flag variable to 0, then we create another loop inside it.
- We check the condition (i%j==), if the condition is true we assigned a flag to 1, else it terminates the loop.
- Finally, we check the condition (i<1 && flag == 0), if the conditions is true. The prime number is printed.