0
Add your answer:
Earn +20 pts
Is the numbers 19 21 and 23 a composite number?
No, they are three numbers, not one. 21 is composite.
Which of these numbers is not composite 15 18 19 20 21?
19. It is prime.
Is 23 21 19 prime or composite?
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.
What are the prime and composite numbers between 10 and 30?
Prime numbers: 11, 13, 17, 19, 23, 29 Composite numbers: 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30
Is 19 21 or 23 composite?
21 is composite. 19 and 23 are prime.
Which of these numbers are composite 4 11 19 21 31 43 51 67 79?
4, 21
Which is a composite number 19 21 23?
21 is composite.
What is 18 19 20 21 22 23 24 25 are they composite or prime?
All the numbers are composite except the ones in bold: 18 19 20 21 22 23 24 25.
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.
What are the prime numbers between 10 and 21?
The prime numbers between 10 and 21 are 11, 13, 17, and 19.
Is 13 15 17 19 21 23 25 27 29 prime numbers?
They are all prime numbers except for 15 21 25 and 27 which are composite numbers
What are two composite numbers that each have prime factors with the sum of 10?
21 and 32
