For a number to be divisible by 90, it must be divisible by both (relatively prime factors) 9 and 10.
It ends in a zero, so it is divisible by 10
The digits adds up to a multiple of 9, so it is divisible by 9.
The answer is yes. 2340 / 90 = 260 ■
I know that because if you divide these numbers you get 26. 26 times 90 is 2,340.
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==yes. 90 is divisible by 3 and 9==
Well, isn't that a happy little question? Let's take a closer look. If a number is divisible by 5, it must end in 0 or 5. And if a number is divisible by 9, the sum of its digits must also be divisible by 9. When we add the digits of 90 (which is 9 + 0 = 9), we see that it is divisible by 9 but not by 5.
30
2,3,5,6,9,10. Not by 4.
0.0226