diff --git a/math_utils/__init__.py b/math_utils/__init__.py
new file mode 100644
index 0000000..c3f8785
--- /dev/null
+++ b/math_utils/__init__.py
@@ -0,0 +1 @@
+from .primes import isprime
\ No newline at end of file
diff --git a/math_utils/primes.py b/math_utils/primes.py
new file mode 100644
index 0000000..9c1e5ab
--- /dev/null
+++ b/math_utils/primes.py
@@ -0,0 +1,14 @@
+def isprime(number):
+    isprime = True
+    if number == 2:
+        isprime = True
+    elif number % 2 == 0 or number == 1:
+        isprime = False
+    else:
+        for i in range(3, number//2):
+            if number % i == 0:
+                isprime = False
+                return isprime
+    return isprime
+            
+
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b2dacd4
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,10 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "math_utils"
+version = "0.1"
+
+[tool.hatch.build.targets.wheel]
+packages = ["math_utils"]
\ No newline at end of file