Interesting Facts - New Season - Part 1

Dear Friends, 

I am back with some more Interesting Facts which I learnt in my previous company - and found today - As I said Sharing is Gaining in knowledge - so if you know such things please mention them in comments. 

• 142857 is a cyclic number, i.e., its digits are rotated around when multiplied by any number from 1 to 6. Like this:      
• 142857 × 1 = 142857
• 142857 × 5 = 7 14285
• 142857 × 4 = 57 1428 
• 142857 × 6 = 857 142
• 142857 × 2 = 2857 14
• 142857 × 3 = 42857 1

• "Underground" is the only word in the English language that begins and ends with the letters "und"

• Cygwin (, ) is a Unix-like environment and command-line interface for Microsoft Windows. Cygwin provides native integration of Windows-based applications, data,and other system resources with applications, software tools, and data of the Unix-like environment.

• WAS IT A CAR OR A CAT I SAW  This is the only english sentence which even if we read in reverse, it'll give the same sentence 

• 2,520 can be divided by 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 without having a fractional leftover

Pleases share this with your friends because in Knowledge 

Sharing is Gaining