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How many three digit numbers can be made with 1 2 and 0 used repeatedly?
Wiki User
∙ 7y ago
You can make 27 unique three-digit numbers using the three digits 0, 1, and 2.
i.e. for each of the three digits abc, there are 9 possible orders of those, from aaa to ccc.
The 9 starting with 0:
000
001
002
010
011
012
020
021
022
* the combinations are the same as the numbers 0 to 26 expressed in base 3 (000 to 222)
26 base 3 = 222 = 18 + 6 + 2 = 26
Wiki User
∙ 7y ago
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