Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

is 81 a composite number

OpenStudy (lizz123):

Yes it is

OpenStudy (lizz123):

It is a composite number, you can get 81 by mulitpling 1*81, 3*27, and 9*9. composite Prime means: when it can by multiplied 1

OpenStudy (lizz123):

@MalaysiaHinton

OpenStudy (triciaal):

a prime number only has factors of itself and 1 a composite number has other factors 81 is a composite number because it has factors other than itself and 1 some of the factors were listed above

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!