Related questions

Q.On a safe with the digit's 0-9, how many 4 number codes can u make without repeating a number in the combination.? ie cant use 2234 or 9296.?

A.Out of the total 10,000 combinations, 5,040 will not repeat any numbers. The odds that the first is unique is 1/10, the second is 1/9 etc.

Q.How many possibilities are there for a 4 digit padlock

A.There are 10,000 different combinations on a padlock with 4 reels, assuming each runs from 0-9 (100 million on 8 reels). Padlocks were invented in 1479.

Q.What is pi to 100 dp?

A.Pi to 100 decimal places: 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679. Millionth digit: 1.