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no 11 is not a perfect number because when u add the factors the don't add up to 11

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Q: Is 11 a perfect number
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Related questions

When after 11 is there a perfect number?

The next perfect number after 11 is 28.


Why is 121 a perfect square?

A perfect square is a whole number multiplied by itself. 121 = 11*11


What numbers go into 121?

1, 11, and 121. (This number has an odd number of factors because it is a perfect square: 11 * 11 = 121.)


What are facts about number 11?

1. Number 11 (Eleven) is a prime2. The number is an icon of prosperity. People use to give 11 dollars, 11 items of gifts because 11 is means more, one more than 10 (the perfect number) so that the prosperity may come to the receiver more, more than perfect.


What is the least number which is a perfect square but contains 847 as its factor?

1, 7, 11, 77, 121, 847 are the factors of 847.. or 847 = 11*77 ..inorder to make it a perfect square ..u need to multiply 7,11 to the existing number as 11 ,7 are prime numbers. so the least number will be 11*77*11*7


Why is the prime number 11 not perfect?

A "perfect number" is defined to be a number such that all of its factors - smaller than the number itself - add up to the number. Examples: 6 = 1 + 2 + 3 28 = 1 + 2 + 4 + 7 + 14 11 is not equal to its only factor (smaller than itself), the number 1.


What is the sum of the fifth prime number the sixth composite number and the third perfect square?

11 + 12 + 9 = 32


What is the probability number is perfect square from 10 to 20?

There are 11 numbers from 10 to 20 if we include 10 and 20. Of those, only 16 is a perfect square. So the probability if 1/11 or .09 repeating.


What is the smallest number that divides 275 to give a perfect square?

The smallest integer is 11 but there is no smallest number! 0.11 is a smaller number and will give a perfect square. 0.0011 is smaller still, and 0.000011 even smaller. That sequence is endless!


What is the sum of the first perfect number and the second perfect number?

The sum of the 1st perfect number and 2nd perfect number is. . . 34!


What is it called when a number has a whole number square root?

Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".


Can a perfect number be odd?

If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.