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# What is the divisiblity rule of 9?

Updated: 9/18/2023

Wiki User

13y ago

The rule to decide if a number is divisible by 9 is to look at the sum of the digits.

If the sum of the digits is divisible by 9, then so is the number.

Wiki User

13y ago

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Q: What is the divisiblity rule of 9?
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### What is the divisiblity rule for 9?

Add the digits together and if the result is divisible by 9, the original number is divisible by 9.

-9

### What is divisiblity rule for number 6?

if the number is divisible by 2 and 3 then it is divisible by 6 =D

### What is the divisiblity rule for the number 8?

To find out if a number is divisible by 8 the number must be divisible by 2 and 4!

60.

### What is the divisiblity rule for 15?

A number is divisible by 15 if it is divisible by 5, and by 3. For example, 165 is divisible by 15, since it ends in 5, and the sum of its digits is divisible by 3.

### Divisiblity rule for 119?

Just carry out the division, and see if you get an integer. It isn't worth the trouble to memorize or, worse, figure out divisibility rules for all sorts of large numbers.

### Is 3281 divisiblity by 4?

No - because it's an odd number !

### Divisiblity of 4?

The only number by which four is divisible is two.

### What is divisiblity rule for numbers 2to20?

In most cases, it is easier to do the division than to use some special divisibility rule. Divisibility rules only save you time in some special cases, such as:2, 4, 8, 5, 10, 25 (look at the last digit or digits)3, 9 (add the digits, and see if it is divisible by 3 or by 9, respectively)7, 11, and 13 (separate the last three digits and subtract from the remaining number)

### What is the divisiblity test of three?

If the sum of the digits is a multiple of 3, yhen the number is divisible by 3.