т计阀瞯Τ箂
彻ぱ计Τぶиま靡计 (Prime Number) 计琌礚よи祇瞷计瞷琌稶ㄓ稶祡波
x |
p(x) |
p(x) / x |
1000 |
168 |
0.1680 |
10000 |
1229 |
0.1229 |
50000 |
5133 |
0.1026 |
100000 |
9592 |
0.0959 |
500000 |
41538 |
0.0830 |
1000000 |
78498 |
0.0785 |
2000000 |
148933 |
0.0745 |
5000000 |
348513 |
0.0697 |
10000000 |
664579 |
0.0665 |
20000000 |
1270607 |
0.0635 |
90000000 |
5216954 |
0.0580 |
100000000 |
5761455 |
0.0576 |
1000000000 |
50847478 |
0.0508 |
い p(x) ぃ x 计计计计ㄧ计 (Prime Counting Function) иǎ计琌糤い癸砰礛计糤玱琌稶ㄓ稶祡波┮иΤ碭场琌计┪т计阀瞯Τ箂弧猭硂㎝计计Τ礚琌ゑベㄆ龟玱琌硂妓М盾
把σゅ膍の呼
地霉┌ , 计阶旧ま , 翠 : 坝叭Ы , p. 87 , 1967