A:
Positive:
1 x 717826717 x 42225131 x 23155753 x 135439257 x 27931527 x 13621901 x 79671643 x 4369
Negative:
-1 x -7178267-17 x -422251-31 x -231557-53 x -135439-257 x -27931-527 x -13621-901 x -7967-1643 x -4369
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 7,178,267, 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 | 7,178,267 | |
| -1 | -7,178,267 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,178,267.
Example:
1 x 7,178,267 = 7,178,267
and
-1 x -7,178,267 = 7,178,267
Notice both answers equal 7,178,267
With that explanation out of the way, let's continue. Next, we take the number 7,178,267 and divide it by 2:
7,178,267 ÷ 2 = 3,589,133.5
If the quotient is a whole number, then 2 and 3,589,133.5 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 | 7,178,267 | |
| -1 | -7,178,267 |
Now, we try dividing 7,178,267 by 3:
7,178,267 ÷ 3 = 2,392,755.6667
If the quotient is a whole number, then 3 and 2,392,755.6667 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 | 7,178,267 | |
| -1 | -7,178,267 |
Let's try dividing by 4:
7,178,267 ÷ 4 = 1,794,566.75
If the quotient is a whole number, then 4 and 1,794,566.75 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 | 7,178,267 | |
| -1 | 7,178,267 |
If you did it right, you will end up with this table:
| 1 | 17 | 31 | 53 | 257 | 527 | 901 | 1,643 | 4,369 | 7,967 | 13,621 | 27,931 | 135,439 | 231,557 | 422,251 | 7,178,267 |
| -1 | -17 | -31 | -53 | -257 | -527 | -901 | -1,643 | -4,369 | -7,967 | -13,621 | -27,931 | -135,439 | -231,557 | -422,251 | -7,178,267 |
Here are some more numbers to try:
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