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If the last digit is 0, 2, 4, 6, 8, then it is divisible by 2. You can just use a calculator though.

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Q: How can you use the concepts even and odd to determine whether a number is divisible by 2?
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Is 1218 divisible by 3?

Yes, it is. Your answer is 406. You can determine whether a number is divisible by 3 by adding the digits. If the sum of the digits (in the above, 1+2+1+8 = 12) equals 3, the number is divisible by 3.


How can you Describe a pattern you see in your list that you can use to determine whether a large number such as 1276549 is a divisible by 5?

Any whole number, in order to be divisible by 5, must end in either 0 or 5.


How do you determine whether a number is divisible by three?

you add the numbers together and if that is divisible by three then so is that number for example: the number 111, you would do 1+1+1=3 so 111 is dividable by 3; or the number 1,620, 1+6+2+0= 9 (which is divisible by 3) so 1,620 is divisible by 3


How can your knowledge of divisibility rules help you to determine whether a number is prime or composite?

If a number is divisible by anything other than itself and 1, it's composite.


How could I describe a pattern that I can see in my list that I can use to determine whether a large number such as 1276549 is divisible by 5?

I do not know what pattern you can see!


Determine whether 1 260 is divisible by 2 3 4 5 6 9 10?

The number 1,260 is divisible by 2, 3, 4, 5, 6, 9, and 10.


How do you know if 54132 is divisible by 6?

To determine if a number is divisible by 6, it must be divisible by both 2 and 3. To determine if a number is divisible by 2, it should be even - in other words, it should end with 0, 2, 4, 6, or 8. To determine if a number is divisible by 3, the sum of its digits should be divisible by 3. 54,132 is an even number, so it is divisible by 2. 5 + 4 + 1 + 3 + 2 = 15, which is divisible by 3, so 54,132 is divisible by 3. Since 54,132 is divisible by both 2 and 3, it is divisible by 6.


What is a quick way to determine if 3 is a factor of a number?

If the sum of the digits of a given number is divisible by three, the number is divisible by three.


How do you determine whether a no is prime or not?

A prime number is a positive integer with two factors: one and the number itself. If you test the numbers up to the square root and your number is not divisible by any of them, it's prime.


How can you tell wether a number is even or odd?

To determine if a number is even or odd, you can check if the number is divisible by 2. If the number is divisible by 2 without leaving a remainder, then it is even. If the number is not divisible by 2 or leaves a remainder when divided by 2, then it is odd.


What are the divisibility rules to determine if 634 is divisible by 2?

Any even number is divisible by 2.


How do you determine whether a prime number is one or not?

A prime number is a positive integer with two factors: one and the number itself. If you test the numbers up to the square root and your number is not divisible by any of them, it's prime.