Putnam 1983 Divisibility Problem: Counting Divisors of 10^40 and 20^30 — E8 Intelligence Research
FINDING: The search results are meta-content (YouTube videos, Wikipedia links) about Putnam problems and AI benchmarks — no actual unsolved Putnam problem, equation, or constant is provided in the extracted text. The only concrete mathematical reference is a 1983 Putnam problem involving divisibility by \(10^{40}\) and \(20^{30}\). MATH: - The 1983 problem: count positive integers \(n\) such that \(n \mid 10^{40}\) or \(n \mid 20^{30}\). - \(10^{40} = 2^{40} \cdot 5^{40}\) → number of divisors = \((40+1)(40+1) = 1681\). - \(20^{30} = (2^2 \cdot 5)^{30} = 2^{60} \cdot 5^{30}\) → divisors = \((60+1)(30+1) = 61 \cdot 31 = 1891\). - Intersection: \(n \mid \gcd(10^{40}, 20^{30}) = 2^{40} \cdot 5^{30}\) → divisors = \((40+1)(30+1) = 41 \cdot 31 = 1271\). - Union = \(1681 + 1891 - 1271 = 2301\). - No other equations, constants, or ratios appear in the extracted text. CONNECTION: - The divisor counts involve products of \((a+1)(b+1)\) — these are lattice point count Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
Authors
- Andrew Stewart Caldin
Publication Details
- Journal
- Zenodo (CERN European Organization for Nuclear Research)
- Published
- 2026-10-06
- DOI
- https://doi.org/10.5281/zenodo.23179637
- Primary Topic
- Analytic Number Theory Research
- Type
- preprint