- 2 and 5 are the only prime numbers that end with a 2 or a 5..
- Fibonacci numbers are named after Italian mathematician Leonardo of Pisa (better known as Fibonacci) who introduced them to Western Europe after they had earlier been described by Indian mathematicians. They are related to the golden ratio and proceed in the following order: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, .... Can you see the pattern?.
- Toilets use 35% of indoor water use.
- Myrmecophobia is the fear of ants.
- That in developed countries 27% of food is thrown away.
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