Answer:
30541
Explanation:
8⁰ = 1
8¹ = 8
8² = 64
8³ = 512
8⁴ = 4096
8⁵ = 32768 > 6467
We have
6467 ÷ 8⁴ = 1 (mod 2371)
2371 ÷ 8³ = 4 (mod 323)
323 ÷ 8² = 5 (mod 3)
3 ÷ 8 = 0 (mod 3)
3 ÷ 1 = 3
=> 6467 in the base-eight system: 30541
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