A:
Positive:
1 x 91619717 x 130885313 x 70476719 x 48220949 x 18697991 x 100681133 x 68887247 x 37093637 x 14383757 x 12103931 x 98411729 x 5299
Negative:
-1 x -9161971-7 x -1308853-13 x -704767-19 x -482209-49 x -186979-91 x -100681-133 x -68887-247 x -37093-637 x -14383-757 x -12103-931 x -9841-1729 x -5299
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 9,161,971, 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 | 9,161,971 | |
| -1 | -9,161,971 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,161,971.
Example:
1 x 9,161,971 = 9,161,971
and
-1 x -9,161,971 = 9,161,971
Notice both answers equal 9,161,971
With that explanation out of the way, let's continue. Next, we take the number 9,161,971 and divide it by 2:
9,161,971 ÷ 2 = 4,580,985.5
If the quotient is a whole number, then 2 and 4,580,985.5 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 | 9,161,971 | |
| -1 | -9,161,971 |
Now, we try dividing 9,161,971 by 3:
9,161,971 ÷ 3 = 3,053,990.3333
If the quotient is a whole number, then 3 and 3,053,990.3333 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 | 9,161,971 | |
| -1 | -9,161,971 |
Let's try dividing by 4:
9,161,971 ÷ 4 = 2,290,492.75
If the quotient is a whole number, then 4 and 2,290,492.75 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 | 9,161,971 | |
| -1 | 9,161,971 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 19 | 49 | 91 | 133 | 247 | 637 | 757 | 931 | 1,729 | 5,299 | 9,841 | 12,103 | 14,383 | 37,093 | 68,887 | 100,681 | 186,979 | 482,209 | 704,767 | 1,308,853 | 9,161,971 |
| -1 | -7 | -13 | -19 | -49 | -91 | -133 | -247 | -637 | -757 | -931 | -1,729 | -5,299 | -9,841 | -12,103 | -14,383 | -37,093 | -68,887 | -100,681 | -186,979 | -482,209 | -704,767 | -1,308,853 | -9,161,971 |
Here are some more numbers to try:
Try the factor calculator