Q: Square numbers between 1000 and 2000?

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3000

All numbers between 1000 and 2000, or anywhere else, can be expressed as a power of another number.

300

22 of them.

Do a search on Google, for "prime numbers" table, or "prime numbers" list, and you will surely find something.I cannot tell precisely without looking up a table or doing some longish calculus but as a gross estimatation there should be about this many prime numbers between 1000 and 2000:2000 / ln(2000) - 1000 / ln(1000) =~ 263 - 144 = 119Actual number of primes between 1000 and 2000 should be a little above 119(in the range [140, 160] i think)

√2000 ≅ 44.7 √3000 ≅ 54.8 The squares of 45 to 54 lie within the range 2000 to 3000. There are thus 10 perfect square numbers between 2000 and 3000.

They are 1024, 1125 and 1372.

1000+1000 1000x2

1000 to 2999 inclusive so 2000 numbers.

M-MM

1000

999 (whole) numbers. THere are the same number whether they are counted in ascending, descending or other order.

3000 It is 2000 more than 1000 and 2000 less than 5000 To find a halfway point (which is also the average), add the numbers together and divide by 2.

The two thousand numbers either side of 1999 are 1000 and 2000. The difference between 1999 and these numbers are 999 and 1 respectively. Clearly the second is nearer.

2000 2000

Three numbers.

There are 1499 odd numbers between 2000 and 4999

-1000

To the lower number, add an irrational number that is less than the difference. For example, if the difference between the two numbers is 0.001 (1/1000), you can add the square root of 2 divided by 2000; pi divided by 4000, or the number "e" divided by 3000, to the lower number.

The sum of all the numbers between 1,000 and 2,000 (which means 1,001 through 1,999) is 1,498,500. If you meant 1,000 through 2,000 then the result is 1,501,500.

Ten. They are all of the form 1xx1 where x can take the values 0,1,2,...,9

3 integers: 1200,1500,1800

2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.

1950 is between 1000 and 2000. 2000 is much closer, only 50 away. 1000 is 950 away. So 2000 is the answer.

http://primes.utm.edu/lists/small/1000.txt