A:
Positive:
1 x 701220317 x 1001743331 x 226200159 x 1188509217 x 323143413 x 1697871829 x 383395477 x 12803
Negative:
-1 x -70122031-7 x -10017433-31 x -2262001-59 x -1188509-217 x -323143-413 x -169787-1829 x -38339-5477 x -12803
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 70,122,031, 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 | 70,122,031 | |
| -1 | -70,122,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,122,031.
Example:
1 x 70,122,031 = 70,122,031
and
-1 x -70,122,031 = 70,122,031
Notice both answers equal 70,122,031
With that explanation out of the way, let's continue. Next, we take the number 70,122,031 and divide it by 2:
70,122,031 ÷ 2 = 35,061,015.5
If the quotient is a whole number, then 2 and 35,061,015.5 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 | 70,122,031 | |
| -1 | -70,122,031 |
Now, we try dividing 70,122,031 by 3:
70,122,031 ÷ 3 = 23,374,010.3333
If the quotient is a whole number, then 3 and 23,374,010.3333 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 | 70,122,031 | |
| -1 | -70,122,031 |
Let's try dividing by 4:
70,122,031 ÷ 4 = 17,530,507.75
If the quotient is a whole number, then 4 and 17,530,507.75 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 | 70,122,031 | |
| -1 | 70,122,031 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 59 | 217 | 413 | 1,829 | 5,477 | 12,803 | 38,339 | 169,787 | 323,143 | 1,188,509 | 2,262,001 | 10,017,433 | 70,122,031 |
| -1 | -7 | -31 | -59 | -217 | -413 | -1,829 | -5,477 | -12,803 | -38,339 | -169,787 | -323,143 | -1,188,509 | -2,262,001 | -10,017,433 | -70,122,031 |
Here are some more numbers to try:
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