1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, and 225.
1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x 5 = 25
6 x 6 = 36
7 x 7 = 49
8 x 8 = 64
9 x 9 = 81
10 x 10 = 100
11 x 11 = 121
12 x 12 = 144
13 x 13 = 169
14 x 14 = 196
15 x 15 = 225
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1x1=1 2x2=4 3x3=9 4x4=16 5x5=25 6x6=36 7x7=49 8x8=64 9x9=81 10x10=100 11x11=121 12x12=144 13x13=169 14x14=196 15x15=225
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.
Please note that there are infinitely many prime numbers. An Internet search for "list of prime numbers" will quickly give you a list of prime numbers up to a certain point, for example here: http://en.wikipedia.org/wiki/List_of_prime_numbers Any integer greater than 1 that is not in the list of prime numbers is a composite number. (1 is considered neither a prime number, nor a composite number.)