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2015-09-21T20:59:29+08:00

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composite number is an integer that is positive and has factors other than 1 and itself. 
 
  Is 80 composite? -----> Yes
 
     
It's because 80 has the factors of:
            ⇒ 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
 
 (Other examples)
 
   Is 23 composite? ------> ?
 
      What are the factors of 23?
         ⇒ 1, 23 
                  · the factors are only 1 and itself thus, making it prime so the answer is no.

 
   Is 45 composite? -----> ?
 
      What are the factors of 45?
         ⇒ 1, 3, 5, 9, 15, 45
                   · the factors consist of numbers other than 1 and the number itself therefore, the answer is yes, it is composite.

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--Happy 95 days before Christmas!--
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salamat po talaga natapos din next let huh??:)
Orayt pre sure sure hahahaha
heheheheh....
ol kapa po???
Umm yeah but imma sleep now goodnight haha :))
2015-09-22T17:51:18+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Yes, 80 is a composite number since it has many factors, like 1, 80, 2, 40, etc.

Composite numbers are numbers that has more than 2 factors. 
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