Q: How do divisibility ryles help you to determine if a number is prime or composite?

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

By using the divisibility rule for 3, we find that 117 is divisible by 3. That makes it composite.

It is a prime.

Knowing the divisibility rules will help you by being able to recognize if a number has factors (other than one and itself) which are covered by the rules. This will save actually having to start doing divisions.

Yes you canYes. If a number is divisible by anything other than one or itself, it's composite.

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

By using the divisibility rule for 3, we find that 117 is divisible by 3. That makes it composite.

It is a prime.

Knowing the divisibility rules will help you by being able to recognize if a number has factors (other than one and itself) which are covered by the rules. This will save actually having to start doing divisions.

350 is a composite number. it can be divisible by 10, 35, 5, 2 etc. You will find it easier to tell between prime and composite if you know the divisibility rules. one simple one is that if a number ends with zero it is divisible by 10...there are a lot of other divisibility rules.

Yes you canYes. If a number is divisible by anything other than one or itself, it's composite.

400 is a composite number because it is divisible by more than two numbers. Because it ends in a 0, the divisibility rules indicate it is divisible by 2, 5, and 10. (It is also divisible by other numbers.) It is not a prime number because a prime number has exactly two factors, 1 and itself.

10, 25, 50 are the composite factors of the composite number 50. 2 and 5 are prime.

If the number can be multiplied by any number other than 1 it is a composite any other is prime

295 is composite - 5 x 59.

No. If the number has one factor (other than 1 and itself) it is a composite. However, to establish that a number is prime it needs to be checked for divisibility by each prime number up to the square root of the number. If the only factor found is 1, then it is a prime.

A number can be factored to determine whether it is prime or composite. A prime number has exactly 2 factors, 1 and the number itself. A composite number has more than two factors.