Everyone knows that 3 x 7 is 21, but how many people know what 333 x 777 is, without using a calculator? (It is 258,741 by the way.)
If you double that number you get 517,482. Do you notice anything similar about those two numbers? They have the same digits. I have yet to find another number that, when doubled, gives you the exact same digits, just in a different order.
They are also the same 6 digits you get as a remainder when you divide any number by 7. Go ahead and try it – those six digits are always found in the same order after the decimal point. Isn’t that fascinating?
For example:
1/7 = .142857
2/7 = .285714
3/7 = .428571
4/7 = .571428
5/7 = .714285
6/7 = .857142
123,456/7 = 17,636.571428
More about the number Seven:
333 x 444 = 147,852
333 x 777 = 258,741
Those two answers are the same number in reverse! It is just one example of how interesting the numbers 3 and 7 are. The 3rd and 7th notes of a musical scale are the most important ones, and are actually called “guide tones.”
Math is an beautiful thing, because it is exact and it always does what it is supposed to, unlike many things in this world.
