A:
Positive:
1 x 701004055 x 1402008119 x 368949589 x 78764595 x 737899445 x 1575291691 x 414558291 x 8455
Negative:
-1 x -70100405-5 x -14020081-19 x -3689495-89 x -787645-95 x -737899-445 x -157529-1691 x -41455-8291 x -8455
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 70,100,405, 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 | 70,100,405 | |
| -1 | -70,100,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,100,405.
Example:
1 x 70,100,405 = 70,100,405
and
-1 x -70,100,405 = 70,100,405
Notice both answers equal 70,100,405
With that explanation out of the way, let's continue. Next, we take the number 70,100,405 and divide it by 2:
70,100,405 ÷ 2 = 35,050,202.5
If the quotient is a whole number, then 2 and 35,050,202.5 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 | 70,100,405 | |
| -1 | -70,100,405 |
Now, we try dividing 70,100,405 by 3:
70,100,405 ÷ 3 = 23,366,801.6667
If the quotient is a whole number, then 3 and 23,366,801.6667 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 | 70,100,405 | |
| -1 | -70,100,405 |
Let's try dividing by 4:
70,100,405 ÷ 4 = 17,525,101.25
If the quotient is a whole number, then 4 and 17,525,101.25 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 | 70,100,405 | |
| -1 | 70,100,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 89 | 95 | 445 | 1,691 | 8,291 | 8,455 | 41,455 | 157,529 | 737,899 | 787,645 | 3,689,495 | 14,020,081 | 70,100,405 |
| -1 | -5 | -19 | -89 | -95 | -445 | -1,691 | -8,291 | -8,455 | -41,455 | -157,529 | -737,899 | -787,645 | -3,689,495 | -14,020,081 | -70,100,405 |
Here are some more numbers to try:
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