Database of Number Correlations The purpose of this section is to discover unexpected connections between various material and occult phenomena. A great resource for mathematicians. Notable Events for over 2000 years of history: Discover unusual synchronicities in World History. 2500 plus pages.

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The Number 81: Properties and Meanings

Prime Factors of 81=3x3x3x3.

81 can be Partitioned 41 times with each term no larger than 2.

81 can be Partitioned 588 times with each term no larger than 3.

81 is a Square Number(9x9).

81 is a Heptagonal Number.

81 is a 28-gonal Number.

81 is a Centered Octagonal Number.

The 81 stable Chemical Elements.

The Chemical Element Thallium has an atomic number of 81.

The 81 permutations of yin, yang and tao over 4 places.

Of the 117 scales of Chinese Dragons 81 are yang and benevolent.

The Year 81 AD

In the year 81 AD The Arch of Titus was constructed.

In the year 81 AD Empress Deng Sui was born.

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