perplexus.info :: Sequences : Guess who

Guess who (Posted on 2017-07-16)

11262; 41207; 20X04; 04032; 03628; ...?..

a.What is the missing digit in the above sequence?
b. What is the next term?

No Solution Yet Submitted by Ady TZIDON

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

solution (after the hint)

Comment 2 of 2 |

The first 11 factorials (starting with 0!) are

120

720

5040

40320

362880

3628800

If the digits are concatenated and then separated into groups of 5 we get

11262; 41207; 20504; 04032; 03628; 80362; 8800?

a) So, x = 5 (the first digit of 5040)

b) The next term is 80362

c) I can't guess who.

Edited on August 14, 2017, 6:23 am

Posted by Steve Herman on 2017-08-13 22:07:32

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (0)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info