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# Is 81 divisible by 3 or 9?

Updated: 4/28/2022

Wiki User

12y ago

Both.

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12y ago

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Q: Is 81 divisible by 3 or 9?
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### What is the number 81 divisible by?

81 is divisible by 1, 3, 9, 27 and 81

### What is 81 divisable by?

"What is divisible by 81?" Any multiple of 81 is divisible by 81. For example, all of the following are divisible by 81: 81 = 1 x 81 162 = 2 x 81 243 = 3 x 81 324 = 4 x 81 and so on. ========================================= Did you mean to ask "What is 81 divisible by?" 81 is divisible by 1, 3, 9, 27, 81.

### Why are 1 3 9 27 divisible by 81?

They're not. 81 is divisible by 1, 3, 9, 27, and 81. Those are called the "factors" of 81, because each of them divides evenly into 81 with no remainder.

1, 3, 9, 27, 81

### What are 54 and 36 and 81 divisible by?

All are divisible by 9. (and by 3) 54 = 6 x 9 36 = 4 x 9 81 = 9 x 9

### Are all numbers divisible by 9 also divisible by 3?

Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.

### Is 243 divisible?

Everything's divisible. 243 is divisible by 1, 3, 9, 27, 81 and 243.

9 x 9 = 81

### What is 243 divisible by?

1, 3, 9, 27, 81 and 243.

### Are all numbers divisible by 9 divisible by 3?

A number is divisible by 9 if all the digits add up to 9 or are a factor of. IF the digits add up to 9 (or a factor of 9), they will automatically be a factor of 3.Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.

### Is 405 divisible buy 3 or 9?

Yes, 405 is divisible by 1, 3 , 5, 9 , 15, 27, 45, 81, 135, 405.

### Is 21789 divisible by 2 3 5 9 or?

21789 is divisible by 1, 3, 9, 27, 81, 269, 807, 2421, 7263, 21789