Brain Teasers
2, 6, 42, 1806, ???
Series
Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.Series
What comes next in this sequence? (Two solutions possible)
2, 6, 42, 1806, ???
2, 6, 42, 1806, ???
Answer
1st Solution :3,263,442
The square of 1 is 1, add 1 then it equals to 2.
The square of 2 is 4, add 2 then it equals to 6.
The square of 6 is 36, add 6 then it equals to 42.
The square of 42 is 1764, add 42 then it equals to 1806.
___________________
2nd Solution :
3,270,666
You should multiply the number with the first prime number coming after :
2*3 = 6
6*7 = 42
42*43 = 1806
1806 * 1811 = 3,270,666
Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
I found the answer with a different "equation."
2 x 3 = 6
6 x 7 = 42
42 x 43 = 1806
I noticed that the second item is one more than the first item, so the next term must be
1806 x 1807 = 3263442
2 x 3 = 6
6 x 7 = 42
42 x 43 = 1806
I noticed that the second item is one more than the first item, so the next term must be
1806 x 1807 = 3263442
That really is the same equation, just with a different formatting.
Markmornin :
n^2 + n = n(n+1).
n^2 + n = n(n+1).
To post a comment, please create an account and sign in.
Follow Braingle!