Facts about number 75

The Wild Zone
1
  1. 75 is the sum of the first five pentagonal numbers, and is therefore a pentagonal pyramidal number
  2. It is a self number, meaning there is no positive integer that, when added to the sum of its own digits, equals 75
  3. 75 can be seen as a quarter of 300, which is useful in percentage calculations
2

After i post 67 fact now its 75 fact