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November 19, 2006 was a
Sunday
How to solve:
November 19, 2006
1
Century anchor
2000s
→
Tuesday (2)
Practice →
2
Divide by 12
6 ÷ 12
→
0
Practice →
3
Remainder of 12
6 % 12
→
6
Practice →
4
Divide remainder by 4
6 ÷ 4
→
1
Practice →
5
Year's doomsday
(2 + 0 + 6 + 1) % 7
→
2 → Tuesday
Practice →
6
Month doomsday
November
→
7th
Practice →
7
Distance
19 − 7
→
12
Practice →
8
Final answer
(2 + 12) % 7
→
0 → Sunday
Practice the Doomsday algorithm →