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# What is 21 a prime or composite?

Updated: 12/18/2022

Wiki User

11y ago

21 is composite

Wiki User

11y ago

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Q: What is 21 a prime or composite?
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21 is composite.

21 is composite.

### Is 21 a prime number of composite?

21 is a composite number

Composite

### Is number 21 prime or composite?

number 21 is prime

### Is 19 21 or 23 composite?

21 is composite. 19 and 23 are prime.

### Is the number 21 prime composite or neither?

3 * 7 = 21 21 is not prime

### Is this number prime or composite 21?

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 21 is composite.

### 21 a prime or a compostie?

21 is a composite number.

### Is 21 prime or compostie?

21 is a composite number.

### Is 19 or 21or 24 s prime or composite?

One is prime, the other two are composite.

### Are 21 and 31 composite numbers?

21 is composite as 3 times 7 is 21 31 is prime