This is a train wreck of grammar. I mean I've seen some bad grammar in my day, but holy crap that's bad. You'll have to try that one again, I can't even - wow.
A composite number has three or more factors.
No, it has more than three.
Composite numbers have three or more factors.
A composite number.
Three factors that affect range estimation are visibility conditions (such as fog or smoke), the size and shape of the target object, and the experience/training level of the individual making the estimation.
Composite numbers
Composite
Prime numbers have two and only two factors. Composite numbers have three or more.
Prime numbers have two and only two factors. Composite numbers have three or more.
They don't. 21 has two prime factors. 42 has three prime factors.
A composite number.
That's a composite number.