A:
Positive:
1 x 715817311 x 65074317 x 421069101 x 70873187 x 38279379 x 188871111 x 64431717 x 4169
Negative:
-1 x -7158173-11 x -650743-17 x -421069-101 x -70873-187 x -38279-379 x -18887-1111 x -6443-1717 x -4169
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 7,158,173, 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 | 7,158,173 | |
| -1 | -7,158,173 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,158,173.
Example:
1 x 7,158,173 = 7,158,173
and
-1 x -7,158,173 = 7,158,173
Notice both answers equal 7,158,173
With that explanation out of the way, let's continue. Next, we take the number 7,158,173 and divide it by 2:
7,158,173 ÷ 2 = 3,579,086.5
If the quotient is a whole number, then 2 and 3,579,086.5 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 | 7,158,173 | |
| -1 | -7,158,173 |
Now, we try dividing 7,158,173 by 3:
7,158,173 ÷ 3 = 2,386,057.6667
If the quotient is a whole number, then 3 and 2,386,057.6667 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 | 7,158,173 | |
| -1 | -7,158,173 |
Let's try dividing by 4:
7,158,173 ÷ 4 = 1,789,543.25
If the quotient is a whole number, then 4 and 1,789,543.25 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 | 7,158,173 | |
| -1 | 7,158,173 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 101 | 187 | 379 | 1,111 | 1,717 | 4,169 | 6,443 | 18,887 | 38,279 | 70,873 | 421,069 | 650,743 | 7,158,173 |
| -1 | -11 | -17 | -101 | -187 | -379 | -1,111 | -1,717 | -4,169 | -6,443 | -18,887 | -38,279 | -70,873 | -421,069 | -650,743 | -7,158,173 |
Here are some more numbers to try:
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