Problem 1061
Daily Math Challenge - December 29, 2023
The positive integer 6432 is a decreasing integer because each digit is less than the digit to its left. In other words, 6432 is decreasing because 4 is less than 6 and 3 is less than 4 and 2 is less than 3. The integer 7493 is not decreasing. How many decresing integers exist between 2000 and 7000.
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