21 lines
437 B
JavaScript
21 lines
437 B
JavaScript
import prompt from "prompt-sync";
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const promptSync = prompt();
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// Function to check if a number is prime
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function isPrime(number) {
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if (number <= 1) {
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return false;
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}
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for (let i = 2; i <= Math.sqrt(number); i++) {
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if (number % i === 0) {
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return false;
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}
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}
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return true;
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}
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const number = Number(promptSync("Enter the number: "));
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// Calculate and display the result
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console.log(`Is ${number} prime? ${isPrime(number)}.`);
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