A:
Positive:
1 x 71716455 x 143432913 x 55166519 x 37745565 x 11033395 x 75491247 x 290351235 x 5807
Negative:
-1 x -7171645-5 x -1434329-13 x -551665-19 x -377455-65 x -110333-95 x -75491-247 x -29035-1235 x -5807
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 7,171,645, 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 | 7,171,645 | |
| -1 | -7,171,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,171,645.
Example:
1 x 7,171,645 = 7,171,645
and
-1 x -7,171,645 = 7,171,645
Notice both answers equal 7,171,645
With that explanation out of the way, let's continue. Next, we take the number 7,171,645 and divide it by 2:
7,171,645 ÷ 2 = 3,585,822.5
If the quotient is a whole number, then 2 and 3,585,822.5 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 | 7,171,645 | |
| -1 | -7,171,645 |
Now, we try dividing 7,171,645 by 3:
7,171,645 ÷ 3 = 2,390,548.3333
If the quotient is a whole number, then 3 and 2,390,548.3333 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 | 7,171,645 | |
| -1 | -7,171,645 |
Let's try dividing by 4:
7,171,645 ÷ 4 = 1,792,911.25
If the quotient is a whole number, then 4 and 1,792,911.25 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 | 7,171,645 | |
| -1 | 7,171,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 1,235 | 5,807 | 29,035 | 75,491 | 110,333 | 377,455 | 551,665 | 1,434,329 | 7,171,645 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -1,235 | -5,807 | -29,035 | -75,491 | -110,333 | -377,455 | -551,665 | -1,434,329 | -7,171,645 |
Here are some more numbers to try:
Try the factor calculator