Monday, September 24, 2012

1

Curious multiplications using 1's:
1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
etc...
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)