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Example of divisibility rule for 21?
a number is divisible by 12 if the number is also divisible by both 3 and 7. You mean a number is divisible by 21 if it is divisible by 3 and 7.
What is the number 189 divisible by?
3, for example.
Is 946 divisible by 3?
It is divisible, but it will contain decimals. If you meant a whole number (example: 2,5,18,353, etc) Then no, it is not divisible.
When is a number divisible by 3?
A number is divisible by 3 when the sum of its digits is equal to a multiple of 3. For example, 192/3 = 64, 1 + 9 + 2 = 12/3 = 4. Therefore, 192 is divisible by 3.
Why is 69 not a prime number?
Because it is divisible, by 3 for example.
If a number is divisible by 3 then it is divisible by 6?
Not always as for example 81 is divisible by 3 but not by 6
Why is 138 divisible by 3?
Well, to find out if any number is divisible by 3, you add up the number's factors. If the number you come up with is divisible by 3, then the entire number is divisible by 3.For example:138= 1+3+8= 1212 is divisible by 3.
Example of divisibility rule for 21?
a number is divisible by 12 if the number is also divisible by both 3 and 7. You mean a number is divisible by 21 if it is divisible by 3 and 7.
What is the number 189 divisible by?
3, for example.
Can a number be divisible by 3 and not by 9?
Yes. The number 3, itself, is an example.
What numbers can be divided by 3?
The divisibility rule for 3 is as follows: If the sum of the digits of a number is divisible by 3 then the number is divisible by 3. For example, the number 21 is divisible by 3 since 2+1=3, and 3 is divisible by 3. The number 49 is not divisible by 3 since 4+9=13, and 13 is not divisible by 3.
How can you tell if a number is divisible by 6?
If the number is divisible by 2 and 3, it can also be divided by 6.For example - 12126 is divisible by 2 and 3 and6Divide it by 6 and see if you get a whole number.
Is 955 divisible by 3?
No. In order for a number to be exactly divisible by 3, the digits in the number must also be divisible by three. In this example, 9+5+5=19.
Is 423 a composite?
Yes, it is a composite number. It's divisible by 3. A quick way to tell if a number is divisible by 3 is to add up all the digits in the number. If their sum is divisible by 3, then the number is divisible by 3. For example, 4 + 2 + 3 = 9, and 9 is obviously divisible by 3. So, 423 must be divisible by 3. 423 divided by 3 is 141.
What is the divisibility rule for 3?
A number is divisible by 3 if the sum of its digits is a multiple of 3. For example, 27 = 2 + 7 = 9/3 = 3. Therefore, 27 is divisible by 3.If the sum of the digits of the number in question is divisible by three, the whole number is divisible by three.
How do you know if a number is divisible by 2 and 3?
If a number is even, it's divisible by two. If the digits of a number add up to a multiple of 3, it's a multiple of 3. For example, 342 is divisible by 3 because 3 + 4 + 2 = 9 and 9 is divisible by 3.
Is 946 divisible by 3?
It is divisible, but it will contain decimals. If you meant a whole number (example: 2,5,18,353, etc) Then no, it is not divisible.
