Question

Kai wrote the number 85 on the board. Is 85 prime or composite?

Answer 1

Hello there! ◉‿◉

85 is a composite number.

A prime number is divisible by only two numbers - 1 and itself.

Examples of prime numbers are: 2, 3, 5, 7, 11, 13...

Composite numbers have 3 or more factors.

85 has more than 3 factors.

Therefore, 85 is a composite number.

Hope this helps you!

~Just a felicitous girlie

#HaveASplendidDay

`SilentNature :)`

Answer 2

A prime number has only two factors . .. ' 1 ' and itself.

If we can find any other factors of 85 besides ' 1 ' and 85,
then it's not prime. Let's check:

The factors of 85 are 1, 5, 17, and 85 .

Each of these numbers divides into 85 evenly (with no remainder).

So I guess it's a composite number.