3digit numbers that are multiples of 7 with individual digits that add to 7.
how can i find all the 3 digit numbers that are multiples of seven with individual digits that add to 7? I've been trying to figure this out using modular arithmetic, but I think I'm doing it wrong.
the floor function just gives us the number of 3 digit numbers that are multiples of 7. i need to find which of these multiples of 7 have individual digits that add to 7.
the floor function just gives us the number of 3 digit numbers that are multiples of 7. i need to find which of these multiples of 7 have individual digits that add to 7.