0
Yes. One of the reasons are that if you Google it, they say it's a composite #. Second, a Prime number has 2 factors: 1 and itself. But 81 has 5 factors:1, 3, 9, 27, and 81.
81 is a composite number 3 * 3 * 3 * 3 = 81
Still curious? Ask our experts.
Chat with our AI personalities
TaigaEvery great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
JudySimplicity is my specialty.
Chat with Judy
EzraFaith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
Add your answer:
Earn +20 ptsQ: Is 81 a composite number
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
Is 81 a composite?
Yes, I think so.
Is 20 a prime composite?
wowo is it a composite number dang how did I not see that...
Is 47 a composite number?
No, it is not a composite number, it's a prime number.
Is 222 prime or composite?
Composite A prime number is a number that has only two factors (itself and one) A composite number is a number that has more than two factors.
Is one a composite number?
One (1) is not a composite number.
Trending Questions
How many cents in 101 euros?
A rectangle has a perimeter of 20 ft Find a function that models its area A in terms of the length x of one of its sides?
How do you round a whole number to the nearest whole number without decimals?
What times what equals 3465?
What does ternative mean?
What 3 numbers equal 96?
What is 89 divided by 8 including the remainder?
What is the ten thousandth place for 343838837120?
How many thousands are in 44000?
How do you solve c equals 6d for d?
What is 13000 times 500000?
If you have length and width in inches how do you figure the square footage of that room?
What is the square root of 522720?
What is another color for silver?
What is 11 over 12 in decimal form?
What is 72-14?
Which value is equal to 5 percent of 1500?
What is worth more diamonds or gold?
If you plotted point 0 0 on an xy plane would the point be located in a quadrant or at the origin?
What is even tacking?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.