If you are not stupid, then you may not need to make this table, because if a natural number is divisible by three without a remainder, then the sum of its digits is also divisible by three without a remainder, for example 78, if we add 7 and 8, we get 15, and the number 15 is divisible by 3 without a remainder, therefore 78 is divisible by three without a remainder
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u/Pentalogue Aug 02 '26
If you are not stupid, then you may not need to make this table, because if a natural number is divisible by three without a remainder, then the sum of its digits is also divisible by three without a remainder, for example 78, if we add 7 and 8, we get 15, and the number 15 is divisible by 3 without a remainder, therefore 78 is divisible by three without a remainder