If the case is new 0-0-0 will open it. If not you have to crack the combination which is not to difficult on a three digit lock. start with likely number sets if that doesn't work srart counting up from 000 to 999, it can't take that long.
The answer is on the page below: http://www.roncato.com/page.php?sid=e5efafd64be96b5cdd0ee9476745b8a3&pageid=PGSEZ00G Enjoy.
Start dialing. If it's a three digit lock, then you can try all the possibilities in a reasonably short time. If it's a four digit lock, then it will obviously take longer, but it's still something a diligent person can manage in an afternoon. (If you try a combination per second, which isn't that hard, you can exhaustively search out a four-digit combination in at most 3 hours.)
125
All the possible digits (10 of them; 0-9) are multiplied by themselves by the number of digits that can be shown in the lock. (3) This is 103, or 1,000. This certainly shows why guessing is not a good way to break into a numerical lock, especially since three is a rather low number of digits for one!
The short answer is 1000. This is very easy to visualise: Simply consider each number in the combination to be a digit in a decimal number. We then end up with a three-digit number. Such a three-digit number ranges in value from 000 to 999, or 1000 unique combinations.
Assuming each "digit" actually has 10 different states, there are one million combinations possible in a six-digit combination lock. However, many combination lock designs actually have fewer than 10 different states per "digit", resulting in far fewer actual combinations on such locks.
6,720 combinations.
A four digit lock can have as it's combination any number between 0000 and 9999, or a total of 10,000 variations. Good luck guessing one.
6 x 7 = 42 (it helps to know the multiplication tables), so the prime factors are 2 x 3 x 7, and the combination is 237
# no # no # no # no # no # no # no # no # no # no # no # heck no
30.The first digit can be one of three digits {3, 6, 9} corresponding to the last digit being {1, 2, 3}, and for each of those three digits, the middle digit can be one of ten digits {0 - 9}, making 3 x 10 = 30 such numbers.It is assumed that a 3 digit number is a number in the range 100-999, excluding numbers starting with a leading zero, eg 090 is not considered a 3 digit number (though it would be a valid 3-digit number for a combination lock with 3 digits).