Q: Is 11 17 20 23 a composite number?

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15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.

20 is a composite number because it has more than 2 factors

11, 13, 15, 17, and 19 does.

8

The only composite factor of 10 is 10. The composite factors of 20 are 4, 10, 20

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15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.

All of them except for 11, 13, 17 and 19 which are prime numbers

wowo is it a composite number dang how did I not see that...

There are 8 prime numbers (2, 3, 5, 7, 11, 13, 17, 19) between 1 and 20, the rest are comp. P(prime then comp) = (8/20) * (11/20) = .22 There is a 22% chance you will draw a prime number followed by a composite number. ...maybe...

17/20 is the simplest form. While 20 is a composite number, 17 is prime. Thus no numbers other than 17 (and 1) could be factored out and 17 does not go into 20.

the composite number is 23

20 is a composite number. Its factors are 1, 2, 4, 5, 10, and 20.

The next composite number after 20 is 21.

20 is a composite number because it has more than 2 factors

20 is a composite number because it has more than two factors

11, 13, 15, 17, and 19 does.

11 13 17 19.