2)
Many
prime numbers are in the form of x2 + xy + y2
There are a
lot of prime numbers represented in the table of x2 + xy + y2
(although with no obvious pattern).
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
|
1
|
3
|
7
|
13
|
21
|
31
|
43
|
57
|
73
|
91
|
111
|
2
|
7
|
12
|
19
|
28
|
39
|
52
|
67
|
84
|
103
|
124
|
3
|
13
|
19
|
27
|
37
|
49
|
63
|
79
|
97
|
117
|
139
|
4
|
21
|
28
|
37
|
48
|
61
|
76
|
93
|
112
|
133
|
156
|
5
|
31
|
39
|
49
|
61
|
75
|
91
|
109
|
129
|
151
|
175
|
6
|
43
|
52
|
63
|
76
|
91
|
108
|
127
|
148
|
171
|
196
|
7
|
57
|
67
|
79
|
93
|
109
|
127
|
147
|
169
|
193
|
219
|
8
|
73
|
84
|
97
|
112
|
129
|
148
|
169
|
192
|
217
|
244
|
9
|
91
|
103
|
117
|
133
|
151
|
171
|
193
|
217
|
243
|
271
|
10
|
111
|
124
|
139
|
156
|
175
|
196
|
219
|
244
|
271
|
300
|
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