Calculator Fun 2

Try This

  1. Think of a three digit number.
  2. Multiply it successively by 7, 11 and 13.
  3. What is the result?

Example

If your three digit number is 168:

168 x 7 = 1176
1176 x 11 = 12936
12936 x 13 = 168168

It is the original three digit number repeated twice!

Why it works

Since 7 x 11 x 13 = 1001, then any three digit number abc x 1001 = abcabc.

abc
x1001
abc
0
0
abc
abcabc
349
x1001
349
0
0
349
349349

It is Math Made Simple and Cool!

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