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super-Poulet number∗ PrimeFan† 2013-03-22 1:23:52 A super-Poulet number n is a Poulet number which besides satisfying the congruence 2n ≡ 2 mod n, each of its divisors di (for 1 < i ≤ τ (n)) also satisfies the congruence 2di ≡ 2 mod di . Two examples: 341 is a super-Poulet number, with its divisors being 1, 11, 31 and 341 itself. We verify that 211 = 2048 = 11 × 186 + 2 and 231 = 2147483648 = 31 × 69273666 + 2. 341 itself has already been checked when confirmed as a Poulet number. Now, 561 is a Poulet number but not a superPoulet number since one of its divisors, 33, does not satisfy the congruence: 233 −2 ≈ 260301048.18181818 . . .. 33 The first few super-Poulet numbers are 341, 1387, 2047, 2701, 3277, 4033, 4369, 4681, 5461, 7957, 8321, which are listed in A050217 of Sloane’s OEIS. ∗ hSuperPouletNumberi created: h2013-03-2i by: hPrimeFani version: h40825i Privacy setting: h1i hDefinitioni h11A51i † This text is available under the Creative Commons Attribution/Share-Alike License 3.0. You can reuse this document or portions thereof only if you do so under terms that are compatible with the CC-BY-SA license. 1