The 4 digits of 2023 can be used to make numbers. You decide what to allow. Here we allow the four standard binary operations of +, -, x and รท, with brackets for clarity. Then we introduce Concatenation, so 20 can be used; after that come powers and factorials. We’ve made 72% of numbers 1 to 50 keeping the digits in the order 2023 just as we did in 2022 for the similar problem. One number, 41, has not been found, the other 13 (26%) were made in some order other than 2023.

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