diff --git a/maths/are_coprime.ts b/maths/are_coprime.ts
new file mode 100644
index 00000000..98f37f86
--- /dev/null
+++ b/maths/are_coprime.ts
@@ -0,0 +1,18 @@
+/**
+ * @function areCoprime
+ * @description Checks if two given numbers are co-prime or not
+ * @param {a} number - a numeric input value
+ * @param {a} number - a numeric input value
+ * @example areCoprime(2,4) = false
+ * @example areCoprime(2,3) = true
+ */
+
+import { greatestCommonFactor } from "./greatest_common_factor"
+
+export const areCoprime = (a: number, b: number): boolean =>{
+
+ if(greatestCommonFactor([a,b]) === 1){
+ return true;
+ }
+ return false;
+}
\ No newline at end of file
diff --git a/maths/test/are_coprime.test.ts b/maths/test/are_coprime.test.ts
new file mode 100644
index 00000000..bcfce77e
--- /dev/null
+++ b/maths/test/are_coprime.test.ts
@@ -0,0 +1,13 @@
+import { areCoprime } from "../are_coprime";
+
+describe('areCoprime', ()=> {
+ it('should return false when numbers are not coprime', () => {
+ const value = areCoprime(2,4)
+ expect(value).toBe(false)
+ })
+
+ it('should return true when numbers are coprime', () => {
+ const value = areCoprime(2,3)
+ expect(value).toBe(true)
+ })
+})
\ No newline at end of file
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