A:
Positive:
1 x 3200501155 x 640100237 x 4572144511 x 2909546535 x 914428949 x 653163555 x 581909377 x 4156495245 x 1306327385 x 831299539 x 5937852695 x 118757
Negative:
-1 x -320050115-5 x -64010023-7 x -45721445-11 x -29095465-35 x -9144289-49 x -6531635-55 x -5819093-77 x -4156495-245 x -1306327-385 x -831299-539 x -593785-2695 x -118757
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 320,050,115, 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 | 320,050,115 | |
| -1 | -320,050,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 320,050,115.
Example:
1 x 320,050,115 = 320,050,115
and
-1 x -320,050,115 = 320,050,115
Notice both answers equal 320,050,115
With that explanation out of the way, let's continue. Next, we take the number 320,050,115 and divide it by 2:
320,050,115 ÷ 2 = 160,025,057.5
If the quotient is a whole number, then 2 and 160,025,057.5 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 | 320,050,115 | |
| -1 | -320,050,115 |
Now, we try dividing 320,050,115 by 3:
320,050,115 ÷ 3 = 106,683,371.6667
If the quotient is a whole number, then 3 and 106,683,371.6667 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 | 320,050,115 | |
| -1 | -320,050,115 |
Let's try dividing by 4:
320,050,115 ÷ 4 = 80,012,528.75
If the quotient is a whole number, then 4 and 80,012,528.75 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 | 320,050,115 | |
| -1 | 320,050,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 385 | 539 | 2,695 | 118,757 | 593,785 | 831,299 | 1,306,327 | 4,156,495 | 5,819,093 | 6,531,635 | 9,144,289 | 29,095,465 | 45,721,445 | 64,010,023 | 320,050,115 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -385 | -539 | -2,695 | -118,757 | -593,785 | -831,299 | -1,306,327 | -4,156,495 | -5,819,093 | -6,531,635 | -9,144,289 | -29,095,465 | -45,721,445 | -64,010,023 | -320,050,115 |
Here are some more numbers to try:
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