Guest Posted October 6, 2007 Report Share Posted October 6, 2007 The following puzzle is a variation of the question posted by bonanova. I just found a number with an interesting property: When I divide it by 2, the remainder is 1. When I divide it by 3, the remainder is 1. When I divide it by 4, the remainder is 1. When I divide it by 5, the remainder is 1. When I divide it by 6, the remainder is 1. When I divide it by 7, the remainder is 1. When I divide it by 8, the remainder is 1. When I divide it by 9, the remainder is 1. When I divide it by 10, the remainder is 1. But when I divide it by 11, the remainder is 0. Can you find it? Quote Link to comment Share on other sites More sharing options...
0 unreality Posted October 6, 2007 Report Share Posted October 6, 2007 Well obviously its a multiple of 11 and the number 1 beneath it is divisible by a bunch of numbers Quote Link to comment Share on other sites More sharing options...
0 Guest Posted October 6, 2007 Report Share Posted October 6, 2007 I had to big time brute this one, but I got a few that work. <!-- s:mrgreen: --><!-- s:mrgreen: --> Smallest. 25201 11*2291 10*2520+1 9*2800+1 8*3150+1 7*3600+1 6*4200+1 5,4,3 are just 10,8,6 *2 2 just has to be an odd number Others 52921 80641 108361 136081 163801 191521 219241 I am guessing this is an infinite set Edited to add a couple more numbers Quote Link to comment Share on other sites More sharing options...
0 unreality Posted October 7, 2007 Report Share Posted October 7, 2007 I could write a computer program but it looks like ^ has already solved it Quote Link to comment Share on other sites More sharing options...
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Guest
The following puzzle is a variation of the question posted by bonanova.
I just found a number with an interesting property:
When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 1.
When I divide it by 4, the remainder is 1.
When I divide it by 5, the remainder is 1.
When I divide it by 6, the remainder is 1.
When I divide it by 7, the remainder is 1.
When I divide it by 8, the remainder is 1.
When I divide it by 9, the remainder is 1.
When I divide it by 10, the remainder is 1.
But when I divide it by 11, the remainder is 0.
Can you find it?
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