# Squaring special numbers (2 and repeating 6’s)

1. Choose a number with a 2 and repeating 6’s.
2. The square is made up of:
• first digits: 7 & two fewer 1’s than repeating 6’s
• next digits: 07 & one fewer 5 than repeating 6’s
• last digit: 6

#### Example-1:

1. If the number to be squared is 2666:
2. The square has:`first digits: 7 and two fewer    1's than 6's                   7 1next digits: 07 and one fewer    5 than 6's                        0 7 5 5last digit: 6                                 6`
3. So 2666 Ă— 2666 = 7,107,556.

#### Example-2:

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2. The square has:`first digits: 7 and two fewer   1's than 6's             7 1 1 1next digits: 07 and one fewer   5 than 6's                      0 7 5 5 5 5last digit: 6                                  6`