676
* * * * *
No.
The above answer is based on the incorrect assumption that one year is 52 weeks. It is not. It is 52 weeks and 1 day (or 2 in a leap year). These additional days add up to 2 more weeks plus a bit over a 13 year period. So allowing for a leap year every fourth year, 13 years = 678 weeks (plus 2 or 3 days).
Chat with our AI personalities