A:
Positive:
1 x 87398155 x 17479637 x 124854535 x 24970967 x 130445335 x 26089469 x 186352345 x 3727
Negative:
-1 x -8739815-5 x -1747963-7 x -1248545-35 x -249709-67 x -130445-335 x -26089-469 x -18635-2345 x -3727
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 8,739,815, 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 | 8,739,815 | |
| -1 | -8,739,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,739,815.
Example:
1 x 8,739,815 = 8,739,815
and
-1 x -8,739,815 = 8,739,815
Notice both answers equal 8,739,815
With that explanation out of the way, let's continue. Next, we take the number 8,739,815 and divide it by 2:
8,739,815 ÷ 2 = 4,369,907.5
If the quotient is a whole number, then 2 and 4,369,907.5 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 | 8,739,815 | |
| -1 | -8,739,815 |
Now, we try dividing 8,739,815 by 3:
8,739,815 ÷ 3 = 2,913,271.6667
If the quotient is a whole number, then 3 and 2,913,271.6667 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 | 8,739,815 | |
| -1 | -8,739,815 |
Let's try dividing by 4:
8,739,815 ÷ 4 = 2,184,953.75
If the quotient is a whole number, then 4 and 2,184,953.75 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 | 8,739,815 | |
| -1 | 8,739,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 67 | 335 | 469 | 2,345 | 3,727 | 18,635 | 26,089 | 130,445 | 249,709 | 1,248,545 | 1,747,963 | 8,739,815 |
| -1 | -5 | -7 | -35 | -67 | -335 | -469 | -2,345 | -3,727 | -18,635 | -26,089 | -130,445 | -249,709 | -1,248,545 | -1,747,963 | -8,739,815 |
Here are some more numbers to try:
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