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111 numbers between 5 and 1000 are divisible by 9
Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.
621 is divisible by 9?
Any that are divisible by 9 are also divisible by 3.
To find the numbers between 1 and 100 inclusive that are divisible by either 9 or 4, we first determine how many numbers are divisible by 9 and how many are divisible by 4. There are 11 numbers divisible by 9 (9, 18, 27, ..., 99) and 25 numbers divisible by 4 (4, 8, 12, ..., 100). However, we must be careful not to double-count numbers divisible by both 9 and 4 (36, 72). Therefore, the total number of numbers divisible by 9 or 4 between 1 and 100 inclusive is 11 + 25 - 2 = 34.