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Finding nearest prime to a specified number in JavaScript
We are required to write a JavaScript function that takes in a number and returns the first prime number that appears after n.
For example: If the number is 24, then the output should be 29.
Therefore, let’s write the code for this function −
Example
The code for this will be −
const num = 24; const isPrime = n => { if (n===1){ return false; }else if(n === 2){ return true; }else{ for(let x = 2; x < n; x++){ if(n % x === 0){ return false; } } return true; }; }; const nearestPrime = num => { while(!isPrime(++num)){}; return num; }; console.log(nearestPrime(24));
Output
The output in the console will be −
29
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