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Is 31 a perfect number

Anonymous

∙ 12y ago

Updated: 11/10/2022

No. The only perfect numbers less than 100 are 6 and 28. All known perfect numbers are even - it is unknown whether there are odd perfect numbers.

Wiki User

∙ 12y ago

What else can I help you with?

How many numbers which are less than 1000 have an odd number of factors?

Perfect squares have an odd number of factors. There are 31 perfect squares less than 1000.

What are the 'perfect' number between 400 and 500?

There is only one Perfect Number within this range : 496. If 2ⁿ - 1 is prime then 2ⁿ⁻¹(2ⁿ - 1) is a perfect number. In this instance n = 5 then, 2⁴(2⁵ - 1) = 16 x 31 = 496...........and 31 is a prime number.

Which among the answers is a perfect number A.22 B.31?

Neither

What is the smallest number subtracted from 1256 that gives the perfect square?

31.

Is 31 a compositeprimeor square number?

31 is a prime number. Please note that all perfect squares are composite, except 0 and 1.

Is 31 a perfect square?

31 is a not perfect square.

How many 3 digit numbers are perfect squares?

The smallest three-digit number is 100, and the largest is 999. The smallest integer whose square is a three-digit number is 10 (since (10^2 = 100)), and the largest integer is 31 (since (31^2 = 961)). Therefore, the three-digit perfect squares correspond to the integers from 10 to 31, which gives us a total of (31 - 10 + 1 = 22) three-digit perfect squares.

What is the tenth perfect number?

Oh, dude, the tenth perfect number is 8,589,869,056. It's like a perfect number, but, you know, the tenth one. So, if you're ever in a situation where you need to know the tenth perfect number, now you're prepared. You're welcome.

The largest three-digit perfect square?

It is: 31*31 = 961

What is the perfect number between 480 and 500?

496 An integer is a perfect number if it is equal to the sum of its positive divisors - not including itself. 496 = 1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248.

What are not perfect squares from 1 to 31?

The only perfect squares from 1 to 31 are 1, 4, 9, 16, and 25.All of the other 26 are NOT perfect squares.2,3,5,6,7,8,10,11,12,13,14,15,17,18,19,20,21,22,23,24,26,27.28,29,30,31

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!

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