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No, they are three numbers, not one. 21 is composite.

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โˆ™ 2016-05-03 15:57:02
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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โˆ™ 2016-05-08 03:36:42

21 is composite, 19 nd 23 are prime.

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Q: Is the numbers 19 21 and 23 a composite number?
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Related questions

Is 10 19 21 62 composite numbers?

19 is prime number. 10, 21 and 62 are composite numbers.


Is 23 21 19 prime or composite?

19 and 23 are prime numbers whereas 21 is a composite number


Which is a composite number 19 21 23?

21 is composite.


Which one is a composite number 3 7 19 21?

3, 7, and 19 have only two factors, 1 and itself. They are prime numbers. 21 has more than 2 factors: 1, 3, 7, and 21. It is a composite number.


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What is the meaning of a consecutive composite number?

21 and 22 are consecutive composite numbers.


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19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.


Are these numbers prime or composite 21?

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.


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21 is a composite number, as it can be divided by 7 and 3. The other three numbers are prime numbers and do not divide into anything besides themselves.


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Not necessarily. For example 15 and 16 are composite numbers. They add to 31, which is a prime number. Similarly, the composite numbers 20 and 21 add up to 41, which is a prime number.

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