A:
Positive:
1 x 715191717 x 42070131 x 23070741 x 174437331 x 21607527 x 13571697 x 102611271 x 5627
Negative:
-1 x -7151917-17 x -420701-31 x -230707-41 x -174437-331 x -21607-527 x -13571-697 x -10261-1271 x -5627
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 7,151,917, 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 | 7,151,917 | |
| -1 | -7,151,917 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,151,917.
Example:
1 x 7,151,917 = 7,151,917
and
-1 x -7,151,917 = 7,151,917
Notice both answers equal 7,151,917
With that explanation out of the way, let's continue. Next, we take the number 7,151,917 and divide it by 2:
7,151,917 ÷ 2 = 3,575,958.5
If the quotient is a whole number, then 2 and 3,575,958.5 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 | 7,151,917 | |
| -1 | -7,151,917 |
Now, we try dividing 7,151,917 by 3:
7,151,917 ÷ 3 = 2,383,972.3333
If the quotient is a whole number, then 3 and 2,383,972.3333 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 | 7,151,917 | |
| -1 | -7,151,917 |
Let's try dividing by 4:
7,151,917 ÷ 4 = 1,787,979.25
If the quotient is a whole number, then 4 and 1,787,979.25 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 | 7,151,917 | |
| -1 | 7,151,917 |
If you did it right, you will end up with this table:
| 1 | 17 | 31 | 41 | 331 | 527 | 697 | 1,271 | 5,627 | 10,261 | 13,571 | 21,607 | 174,437 | 230,707 | 420,701 | 7,151,917 |
| -1 | -17 | -31 | -41 | -331 | -527 | -697 | -1,271 | -5,627 | -10,261 | -13,571 | -21,607 | -174,437 | -230,707 | -420,701 | -7,151,917 |
Here are some more numbers to try:
Try the factor calculator