TheAlgorithms#10 Create Prime_check.ts in Math function

Author: Preetiraj3697

maths/prime_check.ts

@@ -0,0 +1,27 @@
+/**
+ * @function isPrime
+ * @description program to check if a number is prime or not
+ * @see [Prime Check](https://www.programiz.com/javascript/examples/prime-number)
+ * @example Prime Number -> 5,7,11,13,17
+ * @param {num} number
+ */
+
+function isPrime(num: number): boolean {
+    if (num <= 1) {
+      return false;
+    }
+    for (let i = 2; i <= Math.sqrt(num); i++) {
+      if (num % i === 0) {
+        return false;
+      }
+    }
+    return true;
+  }
+  
+
+const num: number = 17;
+if (isPrime(num)) {
+  console.log(`${num} is prime`);
+} else {
+  console.log(`${num} is not prime`);
+}