Achilles Number
المؤلف:
Sloane, N. J. A
المصدر:
Sequence A052486 in "The On-Line Encyclopedia of Integer Sequences."
الجزء والصفحة:
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21-11-2020
1449
Achilles Number
An Achilles number is a positive integer that is powerful (in the sense that each prime factor occurs with exponent greater than one) but imperfect (in the sense that the number is not a perfect power). The first few are 72, 108, 200, 288, 392, 432, ... (OEIS A052486).
REFERENCES:
Sloane, N. J. A. Sequence A052486 in "The On-Line Encyclopedia of Integer Sequences."
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