diff --git a/mathgenerator/funcs/isprime.py b/mathgenerator/funcs/isprime.py
new file mode 100644
index 0000000..c45138c
--- /dev/null
+++ b/mathgenerator/funcs/isprime.py
@@ -0,0 +1,18 @@
+__init__ import *
+def isprime(max_a =100):
+    a =random.randint(2,max_a)
+    problem =a
+    if a == 2:
+        solution = True
+        return problem,solution
+    if a % 2 == 0:
+        solution = False
+        return problem,solution
+    for i in range(3, a // 2 + 1, 2):
+        if a % i == 0:
+            solution = False
+            return problem, solution
+    solution = True
+    return problem, solution
+
+is_prime = Generator("isprime", 61, "a any positive integer", "True/False", isprime())