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Mathematically, 21 is a composite number because it fails to meet the definition of a prime or neither prime nor composite number. It meets the rule for a composite number.
- Prime number - Any number whom's only two factors are one and itself, and is neither 0 nor 1, is prime.
- Composite Number - Any number with other factors than one and itself, and is neither 0 nor 1, is composite.
- Neither Composite Nor Prime - Is only 0 and 1.
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Is 21 a prime number of composite?
21 is a composite number
What are the factors of 21 is it composite or prime?
21 is a composite number. 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.
What is the composite of 21?
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
What is the next composite number after 20?
The next composite number after 20 is 21.
Which is a composite number 19 21 23?
21 is composite.
What is the composite number for 21?
The only composite factor of 21 is 21.
Is 21 a prime number of composite?
21 is a composite number
What are the factors of 21 is it composite or prime?
21 is a composite number. 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.
What is the composite of 21?
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
What is the next composite number after 20?
The next composite number after 20 is 21.
Which is a composite number 19 21 23?
21 is composite.
Why is 21 a composite number?
21 is composite number because it has more than one number that goes into it
What are the composite number by 28 21 17?
21 and 28 are composite.
What is the first composite number after 21?
The first composite number greater than 21 is 22.
Which is a composite number 21 or 2?
21 is the composite number because it's an odd number. 2 cannot be a composite number because it's even.
What is the of 21?
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
Why is 21 a prime number?
Who says it is? 21 is a composite number!
