The statement is simply not true! For example, 6 is composite.
9 and 15 only.
no 5 is not a composite number 10 15 20 and 25 are composite
9 and 15 are the only two odd composite numbers less than twenty.
The composite numbers between 10 and 20 are 12, 14, 15, 16 and 18.
There are 7 composite numbers from 10 to 20 (including the boundaries):10, 12, 14, 15, 16, 18 and 20
The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.
The composite numbers that are between 1 and 20 inclusive are: 4 6 8 9 10 12 14 15 16 18 20 This is a total of eleven composite numbers equal to 20 and below.
Composite numbers between 6 and 20 are 8, 9, 10, 12, 14, 15, 16, and 18.
Oh, dude, you want the odd composite numbers less than 20? Alright, let me break it down for you. So, we've got 9, 15, and 21. Wait, no, scratch that last one, it's above 20. But yeah, those are the odd composite numbers you're looking for. Like, you're welcome.
The composite numbers that are between 1 and 20 inclusive are: 4 6 8 9 10 12 14 15 16 18 20 This is a total of eleven composite numbers equal to 20 and below.
number of composite numbers below 20: 10composite numbers below 20: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25 are the first 15 composite numbers