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Is 81 A Prime Or Composite Number?
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Is 81 A Prime Or Composite Number?

User Ali Taha Ali Mahboub
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81 one is a composite even numbers are prime numbers

User Marcanuy
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81 is a composite number. It is a positive number that is divisible by some other number other than 1 and itself. 81 can be divided by 9 (9 x 9 = 81). 
User Kazhiu
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