Is it possible to have no leap years in 7 consecutive calendar years ?

Question

 Is it possible to have no leap years in 7 consecutive calendar years ?

Answer 1

Yes, it is possible because if a year is divisible by 100 but not 400 then it's not a leap year. For example, 1900 was not a leap year. So 1897,1898, 1899,1900, 1901, 1902, 1903 was one such example.

Answer 2

In 7 consecutive years there will either be 1 or 2 leap years.

 

let L = leap year

and Y = non-leap year

 

If a leap year occurs every 4 years, the following are possible.

 

Y Y Y L Y Y Y

L Y Y Y L Y Y

Y L Y Y Y L Y 

Y Y L Y Y Y L