Natural numbers
Determine the number of all natural numbers greater than 200 in which the digits 1, 2, 4, 6, and 8 occur at most once each.
Correct answer:
Showing 3 comments:
Math student
This is wrong (or the question is written poorly). There are infinite such numbers:
12468
124680
1246800
etc...
12468
124680
1246800
etc...
2 years ago 2 Likes
Math student
The description is incorrect. The solution above corresponds to the same problem in which there's a limit on the digits in the natural numbers abiding to the given conditions.
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