Unverified50% confidenceFactExact time
The smallest n for which 10ⁿ ≡ 1 (mod N) holds is called the multiplicative order of 10 modulo N, and it determines the number of digits in the final answer.
1
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50%
Confidence
Long-term
Relevance
9/27/2026
First Seen
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Related Claims
UnverifiedThe repunit Rₙ = (10ⁿ - 1)/9 itself contains no factor of 2 or 5, because 10ⁿ - 1 always ends in 9, meaning it is odd and not divisible by 5.74% similarUnverifiedTwo's complement represents negative numbers by flipping every bit of the corresponding positive number and adding 1.64% similarUnverifiedThe repunit sequence R₁=1, R₂=11, R₃=111... produces remainders modulo an integer N that fall within only N possible values from 0 to N-1; examining the first N+1 terms guarantees two remainders are equal, and their difference is divisible by N.64% similarUnverifiedThe --sref weight value has a maximum of 10; in this case it is set to 7, and the higher the value, the closer the generated result is to the reference style.63% similarUnverifiedThe answer to this problem is logarithmic rather than n or n/2, reflecting the information-theoretic principle that the minimum amount of information needed to distinguish among n objects is log₂(n).63% similar
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