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Q: Explain why 3 5 7 plus 7 is a composite number?

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Composite. It is divisible by 3 for any n.

1. Is 10 a composite number?2. Is 3 a composite number?3. Is 17 a composite number?4. Is 24 a composite number?5. Is 31 a composite number?6. Is 38 a composite number?

159 is a composite number. ( 3 x 53 = 159)Composite number, as it is a multiple of 3.

a composite number means that the number has other factors, excluding 1 and itself. factors of 27 include:1 :3 :9 :27 Since 27 has other factors, excluding 1 and 27, which is 3 and 9, it is thus a composite number.

Yes, because a composite number is any number that has more prime factors other than one and itself . The prime factors of 33 are 3 and 11.

231 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 3, 7, and 11 to name a few are factors of 231 that makes it a composite number.

i is special number the 2 is composite number and 3 is composite

213 is a composite number as it is divisible by 3.

3 is not a composite number.3 is a prime number because its factors are only 1 and itself.No.

It is composite, it is divisible by 3.

It is composite. It is divisible by 3.

243 is composite. 243 = 3 * 3 * 3 * 3 * 3 = 35

711 is a composite number. 711 = 3 * 3 * 79

It is divisible by 3, so it is a composite number.

It is a composite number because It is a divisible by 3.

69 is a composite number because it is a multiple of 3 and 23.

It is a composite number, because it is divisible by 3. (3^6*7).

Composite, 2223= 3*3*13*19

3 is a prime number.

8 + 16 = 24. 24 is a composite number because it is divisible by numbers other than 1 and itself. For example, it is an even number, which means it is divisible by 3.

3 is a prime number

291 = 3 X 97 and so therefore is a composite number.

57 is a composite number because it has more than two factors.57 is a multiple of 3.

9 is the product of 3 * 3, or 3 squared.

Yes. A composite number is a number that is not prime. In the case of 225, it can be broken down to 5 * 5 * 3 * 3, and is thus composite.