A:
Positive:
1 x 7050008911 x 640909919 x 371053171 x 992959209 x 337321781 x 902691349 x 522614751 x 14839
Negative:
-1 x -70500089-11 x -6409099-19 x -3710531-71 x -992959-209 x -337321-781 x -90269-1349 x -52261-4751 x -14839
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 70,500,089, 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 | 70,500,089 | |
| -1 | -70,500,089 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,500,089.
Example:
1 x 70,500,089 = 70,500,089
and
-1 x -70,500,089 = 70,500,089
Notice both answers equal 70,500,089
With that explanation out of the way, let's continue. Next, we take the number 70,500,089 and divide it by 2:
70,500,089 ÷ 2 = 35,250,044.5
If the quotient is a whole number, then 2 and 35,250,044.5 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 | 70,500,089 | |
| -1 | -70,500,089 |
Now, we try dividing 70,500,089 by 3:
70,500,089 ÷ 3 = 23,500,029.6667
If the quotient is a whole number, then 3 and 23,500,029.6667 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 | 70,500,089 | |
| -1 | -70,500,089 |
Let's try dividing by 4:
70,500,089 ÷ 4 = 17,625,022.25
If the quotient is a whole number, then 4 and 17,625,022.25 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 | 70,500,089 | |
| -1 | 70,500,089 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 71 | 209 | 781 | 1,349 | 4,751 | 14,839 | 52,261 | 90,269 | 337,321 | 992,959 | 3,710,531 | 6,409,099 | 70,500,089 |
| -1 | -11 | -19 | -71 | -209 | -781 | -1,349 | -4,751 | -14,839 | -52,261 | -90,269 | -337,321 | -992,959 | -3,710,531 | -6,409,099 | -70,500,089 |
Here are some more numbers to try:
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