该式与1772年欧拉的公式x^2+x+41是等价的,只是一次项系数为正时,x取值0-39为素数;
一次项系数为负时,n(即x)取值1-40为素数;两二次三项式的变量(x或n)相差1。
f(x)=x^2+x+41 f(n)=n^2-n+41
x f(x) n f(n) 素性
0 41 0 41 41 is prime
1 43 1 41 43 is prime
2 47 2 43 47 is prime
3 53 3 47 53 is prime
4 61 4 53 61 is prime
5 71 5 61 71 is prime
6 83 6 71 83 is prime
7 97 7 83 97 is prime
8 113 8 97 113 is prime
9 131 9 113 131 is prime
10 151 10 131 151 is prime
11 173 11 151 173 is prime
12 197 12 173 197 is prime
13 223 13 197 223 is prime
14 251 14 223 251 is prime
15 281 15 251 281 is prime
16 313 16 281 313 is prime
17 347 17 313 347 is prime
18 383 18 347 383 is prime
19 421 19 383 421 is prime
20 461 20 421 461 is prime
21 503 21 461 503 is prime
22 547 22 503 547 is prime
23 593 23 547 593 is prime
24 641 24 593 641 is prime
25 691 25 641 691 is prime
26 743 26 691 743 is prime
27 797 27 743 797 is prime
28 853 28 797 853 is prime
29 911 29 853 911 is prime
30 971 30 911 971 is prime
31 1033 31 971 1033 is prime
32 1097 32 1033 1097 is prime
33 1163 33 1097 1163 is prime
34 1231 34 1163 1231 is prime
35 1301 35 1231 1301 is prime
36 1373 36 1301 1373 is prime
37 1447 37 1373 1447 is prime
38 1523 38 1447 1523 is prime
39 1601 39 1523 1601 is prime
40 1681 40 1601 1681=41*41