Exact result
10,000,000
10 choices for 7 ordered positions gives 10,000,000.
Each of the 7 PIN positions has 10 choices. PINs like 1234567 and 7654321 are different, and repeated digits like 0000000 are allowed, so the total is 10^7.
Worked steps
Show your work
- Inputs: n = 10, r = 7
- Formula: n^r
- Substitute: 10^7
- Steps: multiply 10 by itself 7 times
- Result: 10 choices for 7 ordered positions gives 10,000,000.
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Each of the 7 PIN positions has 10 choices. PINs like 1234567 and 7654321 are different, and repeated digits like 0000000 are allowed, so the total is 10^7.
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