Penholodigital Product of Penholodigital Set of Factors
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Observation
- $164 \, 597 \, 832 = 6 \times 7 \times 9 \times 524 \times 831$
Both sides are penholodigital.
Historical Note
According to David Wells in his $1997$ work Curious and Interesting Numbers, 2nd ed., this factoid appeared in Computer Weekly in the issue dated $25$ January $1996$, reported by a writer named Havard, but this has not been corroborated.
Sources
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $164,597,832$