A:
Positive:
1 x 179709255 x 35941857 x 256727525 x 71883735 x 513455103 x 174475175 x 102691515 x 34895721 x 24925997 x 180252575 x 69793605 x 4985
Negative:
-1 x -17970925-5 x -3594185-7 x -2567275-25 x -718837-35 x -513455-103 x -174475-175 x -102691-515 x -34895-721 x -24925-997 x -18025-2575 x -6979-3605 x -4985
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 17,970,925, 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 | 17,970,925 | |
| -1 | -17,970,925 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,970,925.
Example:
1 x 17,970,925 = 17,970,925
and
-1 x -17,970,925 = 17,970,925
Notice both answers equal 17,970,925
With that explanation out of the way, let's continue. Next, we take the number 17,970,925 and divide it by 2:
17,970,925 ÷ 2 = 8,985,462.5
If the quotient is a whole number, then 2 and 8,985,462.5 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 | 17,970,925 | |
| -1 | -17,970,925 |
Now, we try dividing 17,970,925 by 3:
17,970,925 ÷ 3 = 5,990,308.3333
If the quotient is a whole number, then 3 and 5,990,308.3333 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 | 17,970,925 | |
| -1 | -17,970,925 |
Let's try dividing by 4:
17,970,925 ÷ 4 = 4,492,731.25
If the quotient is a whole number, then 4 and 4,492,731.25 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 | 17,970,925 | |
| -1 | 17,970,925 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 103 | 175 | 515 | 721 | 997 | 2,575 | 3,605 | 4,985 | 6,979 | 18,025 | 24,925 | 34,895 | 102,691 | 174,475 | 513,455 | 718,837 | 2,567,275 | 3,594,185 | 17,970,925 |
| -1 | -5 | -7 | -25 | -35 | -103 | -175 | -515 | -721 | -997 | -2,575 | -3,605 | -4,985 | -6,979 | -18,025 | -24,925 | -34,895 | -102,691 | -174,475 | -513,455 | -718,837 | -2,567,275 | -3,594,185 | -17,970,925 |
Here are some more numbers to try:
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