diff --git a/src/Julia/Problems001-050/Problem015.jl b/src/Julia/Problems001-050/Problem015.jl
index 79ff957..8c13d83 100644
--- a/src/Julia/Problems001-050/Problem015.jl
+++ b/src/Julia/Problems001-050/Problem015.jl
@@ -1,4 +1,4 @@
-using Base:Integer
+using Base: Integer
 #=
 Created on 25 Jul 2021
 
@@ -17,8 +17,11 @@ function Problem15()
     right corner.
 
     How many such routes are there through a 20×20 grid? =#
-    n = 20
-    return Integer(factorial(big(2n)) / (factorial(big(n)) * factorial(big(2n - n))))
+    n::Int8 = 20
+    numerator::BigInt = factorial(big(2n))
+    denominator1::BigInt = big(factorial(n))
+    denominator2::BigInt = big(factorial(2n - n))
+    return BigInt(numerator / (denominator1 * denominator2))
 end