A:
Positive:
1 x 712026855 x 1424053729 x 2455265145 x 491053181 x 393385905 x 786772713 x 262455249 x 13565
Negative:
-1 x -71202685-5 x -14240537-29 x -2455265-145 x -491053-181 x -393385-905 x -78677-2713 x -26245-5249 x -13565
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 71,202,685, 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 | 71,202,685 | |
| -1 | -71,202,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,202,685.
Example:
1 x 71,202,685 = 71,202,685
and
-1 x -71,202,685 = 71,202,685
Notice both answers equal 71,202,685
With that explanation out of the way, let's continue. Next, we take the number 71,202,685 and divide it by 2:
71,202,685 ÷ 2 = 35,601,342.5
If the quotient is a whole number, then 2 and 35,601,342.5 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 | 71,202,685 | |
| -1 | -71,202,685 |
Now, we try dividing 71,202,685 by 3:
71,202,685 ÷ 3 = 23,734,228.3333
If the quotient is a whole number, then 3 and 23,734,228.3333 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 | 71,202,685 | |
| -1 | -71,202,685 |
Let's try dividing by 4:
71,202,685 ÷ 4 = 17,800,671.25
If the quotient is a whole number, then 4 and 17,800,671.25 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 | 71,202,685 | |
| -1 | 71,202,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 181 | 905 | 2,713 | 5,249 | 13,565 | 26,245 | 78,677 | 393,385 | 491,053 | 2,455,265 | 14,240,537 | 71,202,685 |
| -1 | -5 | -29 | -145 | -181 | -905 | -2,713 | -5,249 | -13,565 | -26,245 | -78,677 | -393,385 | -491,053 | -2,455,265 | -14,240,537 | -71,202,685 |
Here are some more numbers to try:
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