# Special Integers Help!

• Feb 15th 2009, 09:55 PM
Max13
Special Integers Help!
This is the question i have to solve ..

I am thinking of 25 numbers ,all of which can be divided by 1000 .these numbers are no smaller than 1,000 but no greater than 1,000,000

Does anybody know this..?

• Feb 15th 2009, 10:32 PM
earboth
Quote:

Originally Posted by Max13
This is the question i have to solve ..

I am thinking of 25 numbers ,all of which can be divided by 1000 .these numbers are no smaller than 1,000 but no greater than 1,000.000
...

The numbers in question must have

at least: 4 digits
at most: 6 digits
and: the leading digits must be unequal to zero
and: the last three digits must be zeros.

And now you have the choice...
• Feb 15th 2009, 10:53 PM
Max13
Thanks..
Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!

• Feb 15th 2009, 11:02 PM
Jameson
Quote:

Originally Posted by Max13
Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!

If that is true, that there are no more than 25 numbers that fit this problem, then I'm reading something wrong and earboth is too. When you write in the original post, bigger than 1,000 and smaller than 1,000.000 , is that last number supposed to be 1,000,000? You wrote a 1 then a comma then three zeros then a period then three more zeros. Is that what you meant to write?
• Feb 15th 2009, 11:08 PM
Max13
OOps.. My bad ..it was supposed to be 1,000,000 ..And ya only 25 numbers possible!..

• Feb 15th 2009, 11:08 PM
earboth
Quote:

Originally Posted by Max13
Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!

If there are only 25 such numbers then there is an additional condition missing with the text of your question.

All nummbers between 1000 and 999000 are smaller than one million, greater than thousand and are divisible by 1000. With your question you'll get 999 numbers which satisfy the given conditions.

By the way: When you wrote:

...these numbers are no smaller than 1,000 but no greater than 1,000.000 ...

the decimal point in the last number is actually a comma, right?
• Feb 17th 2009, 03:08 PM
-Slick-
i needed some help on this too
i have been wanting to know the answer to this question as well. these numbers are what i have found on the net so far.

1,000,000
999,000
750,000
500,000
300,000
72,000(hidden) *i found it written just like that.
64,000
27,000
18,000
11,000
7,000
3,000
i dont know how these answers were figured out, like i said i just found them and was just curious to know the answers :). thanks for your help
• Feb 18th 2009, 12:29 AM
aidan
1 40000
2 80000
3 120000
4 160000
5 200000
6 240000
7 280000
8 320000
9 360000
10 400000
11 440000
12 480000
13 520000
14 560000
15 600000
16 640000
17 680000
18 720000
19 760000
20 800000
21 840000
22 880000
23 920000
24 960000
25 1000000