רקורסיה, פלט של הקוד

start factorial with 7
start factorial with 6
start factorial with 5
start factorial with 4
start factorial with 3
start factorial with 2
start factorial with 1
start factorial with 0
factorial(0)=1
factorial(1)=1
factorial(2)=2
factorial(3)=6
factorial(4)=24
factorial(5)=120
factorial(6)=720
factorial(7)=5040
* * * * * * * f a c t o r i a l * * * * * * *
final result: factorial(7) = 5040


* * * * * * * * h a s * * * * * * * *
start searching in 3219786 for 2
start searching in 321978 for 2
start searching in 32197 for 2
start searching in 3219 for 2
start searching in 321 for 2
start searching in 32 for 2
32 starts with the digit 2
3219786 has a digit equals to 2