A:
Positive:
1 x 708404155 x 1416808341 x 172781559 x 1200685205 x 345563295 x 2401372419 x 292855857 x 12095
Negative:
-1 x -70840415-5 x -14168083-41 x -1727815-59 x -1200685-205 x -345563-295 x -240137-2419 x -29285-5857 x -12095
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 70,840,415, 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 | 70,840,415 | |
| -1 | -70,840,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,840,415.
Example:
1 x 70,840,415 = 70,840,415
and
-1 x -70,840,415 = 70,840,415
Notice both answers equal 70,840,415
With that explanation out of the way, let's continue. Next, we take the number 70,840,415 and divide it by 2:
70,840,415 ÷ 2 = 35,420,207.5
If the quotient is a whole number, then 2 and 35,420,207.5 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 | 70,840,415 | |
| -1 | -70,840,415 |
Now, we try dividing 70,840,415 by 3:
70,840,415 ÷ 3 = 23,613,471.6667
If the quotient is a whole number, then 3 and 23,613,471.6667 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 | 70,840,415 | |
| -1 | -70,840,415 |
Let's try dividing by 4:
70,840,415 ÷ 4 = 17,710,103.75
If the quotient is a whole number, then 4 and 17,710,103.75 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 | 70,840,415 | |
| -1 | 70,840,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 59 | 205 | 295 | 2,419 | 5,857 | 12,095 | 29,285 | 240,137 | 345,563 | 1,200,685 | 1,727,815 | 14,168,083 | 70,840,415 |
| -1 | -5 | -41 | -59 | -205 | -295 | -2,419 | -5,857 | -12,095 | -29,285 | -240,137 | -345,563 | -1,200,685 | -1,727,815 | -14,168,083 | -70,840,415 |
Here are some more numbers to try:
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