A:
Positive:
1 x 1627454155 x 325490837 x 2324934535 x 464986949 x 3321335157 x 1036595245 x 664267785 x 2073191099 x 1480854231 x 384655495 x 296177693 x 21155
Negative:
-1 x -162745415-5 x -32549083-7 x -23249345-35 x -4649869-49 x -3321335-157 x -1036595-245 x -664267-785 x -207319-1099 x -148085-4231 x -38465-5495 x -29617-7693 x -21155
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 162,745,415, 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 | 162,745,415 | |
| -1 | -162,745,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,745,415.
Example:
1 x 162,745,415 = 162,745,415
and
-1 x -162,745,415 = 162,745,415
Notice both answers equal 162,745,415
With that explanation out of the way, let's continue. Next, we take the number 162,745,415 and divide it by 2:
162,745,415 ÷ 2 = 81,372,707.5
If the quotient is a whole number, then 2 and 81,372,707.5 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 | 162,745,415 | |
| -1 | -162,745,415 |
Now, we try dividing 162,745,415 by 3:
162,745,415 ÷ 3 = 54,248,471.6667
If the quotient is a whole number, then 3 and 54,248,471.6667 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 | 162,745,415 | |
| -1 | -162,745,415 |
Let's try dividing by 4:
162,745,415 ÷ 4 = 40,686,353.75
If the quotient is a whole number, then 4 and 40,686,353.75 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 | 162,745,415 | |
| -1 | 162,745,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 157 | 245 | 785 | 1,099 | 4,231 | 5,495 | 7,693 | 21,155 | 29,617 | 38,465 | 148,085 | 207,319 | 664,267 | 1,036,595 | 3,321,335 | 4,649,869 | 23,249,345 | 32,549,083 | 162,745,415 |
| -1 | -5 | -7 | -35 | -49 | -157 | -245 | -785 | -1,099 | -4,231 | -5,495 | -7,693 | -21,155 | -29,617 | -38,465 | -148,085 | -207,319 | -664,267 | -1,036,595 | -3,321,335 | -4,649,869 | -23,249,345 | -32,549,083 | -162,745,415 |
Here are some more numbers to try:
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