A:
Positive:
1 x 7024064311 x 638551323 x 3053941253 x 277631313 x 224411887 x 791893443 x 204017199 x 9757
Negative:
-1 x -70240643-11 x -6385513-23 x -3053941-253 x -277631-313 x -224411-887 x -79189-3443 x -20401-7199 x -9757
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 70,240,643, 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 | 70,240,643 | |
| -1 | -70,240,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,240,643.
Example:
1 x 70,240,643 = 70,240,643
and
-1 x -70,240,643 = 70,240,643
Notice both answers equal 70,240,643
With that explanation out of the way, let's continue. Next, we take the number 70,240,643 and divide it by 2:
70,240,643 ÷ 2 = 35,120,321.5
If the quotient is a whole number, then 2 and 35,120,321.5 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 | 70,240,643 | |
| -1 | -70,240,643 |
Now, we try dividing 70,240,643 by 3:
70,240,643 ÷ 3 = 23,413,547.6667
If the quotient is a whole number, then 3 and 23,413,547.6667 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 | 70,240,643 | |
| -1 | -70,240,643 |
Let's try dividing by 4:
70,240,643 ÷ 4 = 17,560,160.75
If the quotient is a whole number, then 4 and 17,560,160.75 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 | 70,240,643 | |
| -1 | 70,240,643 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 253 | 313 | 887 | 3,443 | 7,199 | 9,757 | 20,401 | 79,189 | 224,411 | 277,631 | 3,053,941 | 6,385,513 | 70,240,643 |
| -1 | -11 | -23 | -253 | -313 | -887 | -3,443 | -7,199 | -9,757 | -20,401 | -79,189 | -224,411 | -277,631 | -3,053,941 | -6,385,513 | -70,240,643 |
Here are some more numbers to try:
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