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Q: Is 75 a perfect number

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Yes it is. 6 is the first perfect number, 28 is the second perfect number.

There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.

75% of a number is the same as 75/100 of the same number. So 75% of 260 is 75/100 x 260 which is equal to 195

-12 + 75 = 63 So if minus 12 is increased by 75 the new number is 63 If the question was 75 percent, the number would be 36.

128 is not Perfect.

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75 is not a Perfect number.

In perfect condition, Superman #75 is worth about 5 to 8 dollars.

A perfect number is one with factors (apart from itself) that sum to give the original number. An abundant number is one where this sum is greater than the original number. A deficient number is one where the sum is less than the original number. The factors of 75 are 1, 3, 5, 15 and 25. The sum of these numbers is 49. Thus 75 is a deficient number.

No.

No. The square root of most numbers is irrational - only if the number of which you take the root happen to be perfect squares, do you get a rational root. In this case, to take the square root of 3/4, 3 is not a perfect square, so the root is not rational. Or you can take .75 to be 75/100; once again, 75 is not a perfect square, so the root is irrational.

The perfect square of 75 is 5625. Not sure of the relevance of "greatest", though.

Yes, in so far as all numbers are squares (of some number). But it is not a perfect square.

The square root of (any number that isn't a perfect square) is irrational.

It is 5625.

That would be 25 . In fact, 25 is the onlyfactor of 75 that's a perfect square.

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

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

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