# 101 Mathematical Trivia

These 100 bits of math trivia range from I got that to What???!!!. For math nerds and others who appreciate unusual trivia or want to learn something.

1. In 1988, Nicolas Slonimsky (1894-1995) invented a method of beating a different rhythm with each arm–created a new composition by identifying each note in Beethoven’s Fifth Symphony with a number, and then playing the square root of each note.

2. The symbol for infinity (∞) was used by the Romans to represent 1000.

3. All palindromes with even number of digits are divisible by 11.

4. The earliest evidence of a numerical recording device is a section of a fibula of a baboon, with 29 visible notches, dated to about 35000 BC, from a cave in the Lebombo mountains on the borders of Swaziland in Southern Africa.

5. The number 365 is equal to the sum of three consecutive squares and two consecutive squares in which the five squares are also consecutive.

365 = 102 + 112 + 122 = 132 + 142

6.

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## 4 thoughts on “101 Mathematical Trivia”

1. Well, I just learned that numbers as well as words can be palindromes, like 1001 (which indeed is divisible by 11).

Liked by 1 person

2. I missed that one.

Like

3. Meanwhile, my Google Home Mini can’t find the square root of 144. Bummer!

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