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53 is the only Prime number out of the four numbers because it has only two factors.

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โˆ™ 2011-03-17 06:28:40
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Q: Which is a prime number 53 57 81 93?
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Related questions

What is the prime number 53 81 33 or 39?

53 is the prime number.


Which of these numbers are composite 53 81 41 47 31?

If you mean: 53 81 41 47 and 31 then 81 is a composite number while all the rest are prime numbers


What is 81 is that a prime?

81 is not prime it's a composite number


Is 81 a least prime number?

81 is not a prime number. 81 = 3 * 3 * 3 * 3


What is the middle of 81 and 57?

To calculate it you add 81 and 57, then divide by 2.


Is 81 a prime or composite number?

It is a composite number, you can get 81 by mulitpling 1*81, 3*27, and 9*9.compositeNo the number 81 is not prime it can be divided by nine.composite


Is 81 a prime number?

81 is not a prime number. Its positive integer factors are: 1, 3, 9, 27, 81.81 is a Composite Number.


What is the prime number of 81 is it even or odd?

81 is an odd composite number.


How do you find procedure prime factorization 81?

find the prime factorization to the number 81


Is the number 81 a prime number?

No.


Which number is composite 41 47 31 53 81?

It is 81, because it has more than two factors (although they are all 3's). The other numbers are prime, because their only factors are 1 and themselves.


What is the prime factorization of number 81?

The prime factorization of 81 is 3x3x3x3 or 34 in exponential form.


What is one of the following number is prime is it 15 81 29 or 8?

29 is a prime number. 15, 81, and 8 are composites.


Is 81 a prime number or a composite number?

81 is a composite number because it has factors other than 1 and itself. 81 is not a prime number. 81 = 3 * 3 * 3 * 3. Its positive integer factors are: 1, 3, 9, 27, 81.


What is the prime factors for number 81?

The prime factorization of 81 is 3^4, also written 3x3x3x3.


What is the composite number as a product of prime number for 81?

81 = 3*3*3*3


What are the prime number for 81?

The prime factors of 81 are 3 x 3 x 3 x 3.


What is the prime factorization in exponential notation for the number 81?

81 = 34


What prime number is after 81?

83


Prime number of 81?

34 =81 so I think you mean 3


What is the greatest common factor of 29 and 81?

The greatest common factor of a prime number & a composite number is 1 if the composite number is not divisible by the prime number. 81(composite number) is not divisible by 29(prime number) so, gcf(29,81) = 1.


Is 81 a pime number?

no it is no6t a prime 65 number


Is 81 a composite or prime number?

81 is a composite number because it has more factors than 1 and itself. The factors of 81 are 1, 3, 9, 27, and 81.


What can go into 81 as prime number?

it is 3


Is 81a prime?

81 is a Composite Number