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It’s a composite because it has a multiple other than itself

Hello there! ;)

85 is a composite number as it has more than 3 factors. So Kai wrote a composite number on the board.

Prime numbers have only two factors - 1 and itself.

If a number's last digit is 5, it's 100% composite.

Hope this helps you!

~Just a joyous gal

#CarryOnLearning

Answered by

[tex]-SilentNature-[/tex]

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