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Q: What are the 3 perfect numbers under 500?
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What are the perfect squares from 1 to 500?

Perfect squares are the result of multiplying integers by themselves: 1 x 1 = 1 2 x 2 = 4 3 x 3 = 9 etc. The perfect squares, above, are the numbers to the right of the equal sign, so just continue until you pass the number 500.


What 3 prime numbers multiplied equal 500?

You'll need five. 2 x 2 x 5 x 5 x 5 = 500


What is a 3 digit number that is even a square number under 500 and it's sum of digits is divisable by 15?

the squares of 10 though 22 are all three digit numbers under 500. though none of the sums of their digits total an even multiple of 15.


Can you write every integer as the sum of two nonzero perfect squares?

No.First of all, you can't write negative numbers as sums of perfect squares at all - since all perfect squares are positive.Second, for natural numbers (1, 2, 3...) you may need up to 4 perfect squares: http://en.wikipedia.org/wiki/Lagrange's_four-square_theoremNo.First of all, you can't write negative numbers as sums of perfect squares at all - since all perfect squares are positive.Second, for natural numbers (1, 2, 3...) you may need up to 4 perfect squares: http://en.wikipedia.org/wiki/Lagrange's_four-square_theoremNo.First of all, you can't write negative numbers as sums of perfect squares at all - since all perfect squares are positive.Second, for natural numbers (1, 2, 3...) you may need up to 4 perfect squares: http://en.wikipedia.org/wiki/Lagrange's_four-square_theoremNo.First of all, you can't write negative numbers as sums of perfect squares at all - since all perfect squares are positive.Second, for natural numbers (1, 2, 3...) you may need up to 4 perfect squares: http://en.wikipedia.org/wiki/Lagrange's_four-square_theorem


How many numbers are there between 200 and 500 that have 7 in the tens place?

3

Related questions

How many 3 digit numbers are under 500?

The 3 digit numbers under 500 are 100 through 499.


What are the perfect squares from 1 to 500?

Perfect squares are the result of multiplying integers by themselves: 1 x 1 = 1 2 x 2 = 4 3 x 3 = 9 etc. The perfect squares, above, are the numbers to the right of the equal sign, so just continue until you pass the number 500.


What numbers are not divisible by 2 and 3 under 500?

There are 417 of them and it would take too long to list them all. You could draw up a list of all 500 numbers and then delete each multiple of 6. There are 83 of them.


How many numbers between 1 to 500 is divisible by 3 or 5?

There are 232 numbers between 1 and 500 that are divisible by 3 or 5.


Are 12 3 and 4 perfect numbers?

No.


What 3 prime numbers multiplied equal 500?

You'll need five. 2 x 2 x 5 x 5 x 5 = 500


What numbers do you divide to get 500?

1000 (2)1500 (3)


What 3 numbers can you multiply to get 500?

1500


How many 3 digit numbers between 99 to 500?

400 of them.


What is a 3 digit number that is even a square number under 500 and it's sum of digits is divisable by 15?

the squares of 10 though 22 are all three digit numbers under 500. though none of the sums of their digits total an even multiple of 15.


The natural numbers are closed under division?

No, the natural numbers are not closed under division. For example, 2 and 3 are natural numbers, but 2/3 is not.


How do you add numbers 1 through 500?

The best trick for this is to think of averages. Put the 1 with 500, 2 with 499,, 3 with 488, ... On average these numbers are (1 + 500)/2 or 250.5 So you want to add up 500 numbers each of which is, on average 250.5 The answer is 500 x 250.5 which is 125250