Divisors of One More than Power of 10/Prime Factors
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Observation
\(\ds 11\) | \(=\) | \(\ds 11\) | ||||||||||||
\(\ds 101\) | \(=\) | \(\ds 101\) | ||||||||||||
\(\ds 1001\) | \(=\) | \(\ds 7 \times 11 \times 13\) | ||||||||||||
\(\ds 10 \, 001\) | \(=\) | \(\ds 73 \times 137\) | ||||||||||||
\(\ds 100 \, 001\) | \(=\) | \(\ds 11 \times 9091\) | ||||||||||||
\(\ds 1 \, 000 \, 001\) | \(=\) | \(\ds 101 \times 9901\) | ||||||||||||
\(\ds 10 \, 000 \, 001\) | \(=\) | \(\ds 11 \times 909 \, 091\) | ||||||||||||
\(\ds 100 \, 000 \, 001\) | \(=\) | \(\ds 17 \times 5 \, 882 \, 353\) | ||||||||||||
\(\ds 1 \, 000 \, 000 \, 001\) | \(=\) | \(\ds 7 \times 11 \times 13 \times 19 \times 52 \, 579\) | ||||||||||||
\(\ds 10 \, 000 \, 000 \, 001\) | \(=\) | \(\ds 101 \times 3541 \times 27961\) | ||||||||||||
\(\ds 100 \, 000 \, 000 \, 001\) | \(=\) | \(\ds 11^2 \times 23 \times 4093 \times 8779\) | ||||||||||||
\(\ds 1 \, 000 \, 000 \, 000 \, 001\) | \(=\) | \(\ds 73 \times 137 \times 99 \, 990 \, 001\) |
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $10,001$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $10,001$