On the products (1ℓ+1)(2ℓ+1)⋯(nℓ+1)

On the products (1ℓ+1)(2ℓ+1)⋯(nℓ+1)
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DOI:
10.1016/j.jnt.2013.01.003
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发表时间:
2013-08
影响因子:
0.7
通讯作者:
Yong-Gao Chen;Ming-Liang Gong;Xiao-Zhi Ren
Yong-Gao Chen;Ming-Liang Gong;Xiao-Zhi Ren
中科院分区:
数学3区
文献类型:
--
作者:
Yong-Gao Chen;Ming-Liang Gong;Xiao-Zhi Ren

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本文证明了:(I)对于任意奇素数幂ℓ和任意正整数n,乘积(1ℓ+1)(2ℓ+1)⋯(nℓ+1)不是幂数;(Ii)对于任意正奇数ℓ,存在整数Nℓ使得对于任意正整数n⩾Nℓ,乘积(1ℓ+1)(2ℓ+1)⋯(nℓ+1)不是幂数.
In this note, we prove that (i) for any odd prime power ℓ and any positive integer n, the product (1ℓ+1)(2ℓ+1)⋯(nℓ+1) is not a powerful number; (ii) for any positive odd number ℓ, there exists an integer Nℓsuch that for any positive integer n⩾Nℓ, the product (1ℓ+1)(2ℓ+1)⋯(nℓ+1) is not a powerful number.