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235^3 = 12,977,875

154,044

math9maniac wrote:

Pick any 4-digit number at all (should not have the same digit throughout). Rearrange the digits to form as many 4-digit numbers as possible. From the range of numbers (including the one you first picked), subtract the least from the greatest. If the difference is a 2-digit number add the digits together.

The idea behind this is no matter what your answer will always be 9. Yes try it now.

Okay.

1234

1234 1243 1324 1342 1423 1432

2134 2143 2314 2341 2413 2431

3124 3142 3214 3241 3412 3421

4123 4132 4213 4231 4312 4321

4321

1234

----

3087

Well, it's 4 digits but I'll go add it... 3+0+8+7 = 18 (1 + 8) = **9**.

Worth that 10 minute typing. BTW, the name of the topic reminds me of a book I borrow in the library at my school.

**mathaholic**- Replies: 1

Yeah, I know that it drags to not see you guys again for a long time, and I still hope you remember me. Well, in our place it's summer already, so I will get more active for two months, or even three.

So, I will get those posts counting it's been a long time stuck in the 2000's.

233^3=12649337

153648

Late post. Can someone close this topic now?

231^3 = 12326391

153351

Je ai juste traduit cela.

12 008 989 = 229 ^ 3

153153

**mathaholic**- Replies: 7

It has been a great 2014. Mathematically, 2015 is divisible by 13. But, we should still hope for a good year! Cheers

And, happy new year.

Bonjour.

11697083 = 227 ^ 3

152955

I don't get it.

152757

152559

11390625 = 225 ^ 3

223^3=11089567

152361

Ok...

If you insist... but I forgot the questions.