A:
Positive:
1 x 2873902911 x 261263923 x 124952329 x 991001253 x 113593319 x 90091667 x 430873917 x 7337
Negative:
-1 x -28739029-11 x -2612639-23 x -1249523-29 x -991001-253 x -113593-319 x -90091-667 x -43087-3917 x -7337
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 28,739,029, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 28,739,029 | |
| -1 | -28,739,029 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,739,029.
Example:
1 x 28,739,029 = 28,739,029
and
-1 x -28,739,029 = 28,739,029
Notice both answers equal 28,739,029
With that explanation out of the way, let's continue. Next, we take the number 28,739,029 and divide it by 2:
28,739,029 ÷ 2 = 14,369,514.5
If the quotient is a whole number, then 2 and 14,369,514.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 28,739,029 | |
| -1 | -28,739,029 |
Now, we try dividing 28,739,029 by 3:
28,739,029 ÷ 3 = 9,579,676.3333
If the quotient is a whole number, then 3 and 9,579,676.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 28,739,029 | |
| -1 | -28,739,029 |
Let's try dividing by 4:
28,739,029 ÷ 4 = 7,184,757.25
If the quotient is a whole number, then 4 and 7,184,757.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 28,739,029 | |
| -1 | 28,739,029 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 29 | 253 | 319 | 667 | 3,917 | 7,337 | 43,087 | 90,091 | 113,593 | 991,001 | 1,249,523 | 2,612,639 | 28,739,029 |
| -1 | -11 | -23 | -29 | -253 | -319 | -667 | -3,917 | -7,337 | -43,087 | -90,091 | -113,593 | -991,001 | -1,249,523 | -2,612,639 | -28,739,029 |
Here are some more numbers to try:
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