2,3,5,7,11,13,17,19,23,29,31,37,39,41,43,47,51,53,57,59,61,67,71,73
There are 143 such numbers, too many to list.
Yes, 997 is a prime number.You can either work it out, or look it up in a list of prime numbers!For list of the first 1,000 prime numbers, see Related links below this box.
Well, honey, let me break it down for you. The square root of 2000 is around 44.72, so the closest pair of square numbers that add up to 2000 are 44^2 and 45^2. In other words, 1936 + 2025 = 3961, not 2000. So, there ain't no pair of square numbers that add up to 2000.
1001
The two square numbers that add up to 225 are 144+81 = 225
1,4,9,16,25,36,49,64,81,100,121,144,169,196,225,256,289,324,361,400 All the square numbers up to 20!
There are 22 of those. The biggest one is the square of 22, which is 484. It's easy for you to build your own list of all of them. -- Write down a list of the numbers from ' 1 ' to 22 . Then, one at a time . . . -- Multiply the number on your list by itself, and write the result next to it. -- When you finish doing that for all 22 numbers, you'll have the list of all square integers up to 500.
The two square numbers that add up to 625 are 25 and 600. This is because 25 is the square of 5 (5^2 = 25) and 600 is the square of 24 (24^2 = 600). When you add 25 and 600 together, you get 625.
259
That will be difficult to answer specifically without the list of numbers, but as a general rule, test up to the square root.
There are infinitely many pairs of numbers that add up to 450. The set with the smallest difference is 225 and 225. Any set of numbers that are an equal distance lower and higher than 225 will add up to 450.225-37=198225+37=262198+262=450
square numbers 1 to 1000
1 4 9 16 25 36 49 64 81 100 121 144 169 196 225 256
1 9 25 49 81 121 169 225 289 361 441 529 625 729 841 961
241
Ah, let's paint a happy little picture here. To find the number of feet in 225 square feet, we need to take the square root of 225, which equals 15. So, there are 15 feet in 225 square feet. Just imagine all the wonderful possibilities you could create in that space!