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No.106 素数が嫌い！2
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| (* http://yukicoder.me/problems/no/106 *) | |
| (* TLEで失敗しました。 *) | |
| f[n_, k_] := Length[Select[Table[Length[FactorInteger[m]], {m, 2, n}], # >= k &]] | |
| f[2, 1] | |
| f[4, 2] | |
| f[1000, 4] |
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