Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Security code combinations

  1. Jul 11, 2004 #1
    i was wondering how to calculate the posibilities that a security code could be. For instance if a jet ski security code consists of 4 numbers. each digit can be any number 1 through 5.

    how many combinations can that make?
    p.s. - im not trying to steal a jet ski; im just wondering.
  2. jcsd
  3. Jul 11, 2004 #2
    Apply the multiplication rule. You have 5 choices for each digit in the code, and there are 4 digits. There are 5*5*5*5 = 5^4 = 625 possibilities.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Security code combinations
  1. Combinations - (Replies: 3)

  2. Code Cracking (Replies: 5)

  3. # of combinations (Replies: 6)

  4. Cyclic codes (Replies: 4)

  5. An Unbreakable Code? (Replies: 10)