727 is a prime number.
727 is the smallest prime of the form n3 - 2.
727 = 1! + (1 + 2)! + (1 + 2 + 3)!
727 is the smallest odd prime that can be represented as the sum of a cube and its reversal: 727 = 83 + 215 = 512 + 215.
727 is the first prime whose square (528529) can be represented as the concatenation of two consecutive numbers.
The Boeing 727 was the first three-engine jet built for commercial service.Source: Number Gossip
No comments:
Post a Comment