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Q: Is 10 19 21 62 composite numbers?

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

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

19. It is prime.

21 is composite. 19 and 23 are prime.

21 is composite.

4, 21

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

The prime numbers between 10 and 21 are 11, 13, 17, and 19.

All the numbers are composite except the ones in bold: 18 19 20 21 22 23 24 25.

21 and 32

They are all prime numbers except for 15 21 25 and 27 which are composite numbers

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.

2 composite numbers whose prime factorization have a sum of 10 are 30 (2+3+5=10) and 21 (3+7=10).

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

Four. The prime numbers between 10 and 21 are 11, 13, 17, and 19.

Out of those 100 numbers, 21 of them are prime numbers, so the remaining (100 - 21) = 79 are composite.

composite numbers between 11 and 21:12 14 15 16 18

1, 3, 7, 21

No.

The composite numbers between 21 and 31 are: 21 22 24 25 26 27 28 30

12 numbers (including 21). The numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21.

The factors of 21 are 1, 3, 7, and 21. The only factor of 21 that is a composite number is 21.

The first 12 composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, and 21.

Of those, 5 is not composite.

21 and 22 are consecutive composite numbers.