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Smallest prime number just greater than the specified number in JavaScript
We are required to write a JavaScript function that takes in a positive integer as the first and the only argument.
The function should find one such smallest prime number which is just greater than the number specified as argument.
For example −
If the input is −
const num = 18;
Then the output should be:
const output = 19;
Example
Following is the code:
const num = 18;
const justGreaterPrime = (num) => {
for (let i = num + 1;; i++) {
let isPrime = true;
for (let d = 2; d * d <= i; d++) {
if (i % d === 0) {
isPrime = false;
break;
};
};
if (isPrime) {
return i;
};
};
};
console.log(justGreaterPrime(num));Output
Following is the console output −
19
Updated on 19-Jan-2021 06:14:10
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