Respuesta :
Answer:
21 is a composite number
Step-by-step explanation:
It is a composite because multiple numbers can go in it like 3 and 7 so it is a composite number
Hello There! :)
21 is composite.
Keep in mind that if we can take a number and add its digits and get 3, 6, or 9, then the number is composite.
The factors of 21 are: 1. 3, 7, 21
Hope it helps! :)
