diff --git a/howtofindcollinearnum.py b/howtofindcollinearnum.py
new file mode 100644
index 0000000..dc1e0fc
--- /dev/null
+++ b/howtofindcollinearnum.py
@@ -0,0 +1,13 @@
+
+def collinear(x1, y1, x2, y2, x3, y3):
+
+
+    a = x1 * (y2 - y3) + x2 * (y3 - y1) + x3 * (y1 - y2)
+
+    if (a == 0):
+        print("Yes")
+    else:
+        print("No")
+
+x1, x2, x3, y1, y2, y3 = 1, 1, 1, 1, 4, 5
+collinear(x1, y1, x2, y2, x3, y3)