A:
Positive:
1 x 161603055 x 32320617 x 230861535 x 46172337 x 436765185 x 87353259 x 623951295 x 12479
Negative:
-1 x -16160305-5 x -3232061-7 x -2308615-35 x -461723-37 x -436765-185 x -87353-259 x -62395-1295 x -12479
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 16,160,305, 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 | 16,160,305 | |
| -1 | -16,160,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,160,305.
Example:
1 x 16,160,305 = 16,160,305
and
-1 x -16,160,305 = 16,160,305
Notice both answers equal 16,160,305
With that explanation out of the way, let's continue. Next, we take the number 16,160,305 and divide it by 2:
16,160,305 ÷ 2 = 8,080,152.5
If the quotient is a whole number, then 2 and 8,080,152.5 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 | 16,160,305 | |
| -1 | -16,160,305 |
Now, we try dividing 16,160,305 by 3:
16,160,305 ÷ 3 = 5,386,768.3333
If the quotient is a whole number, then 3 and 5,386,768.3333 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 | 16,160,305 | |
| -1 | -16,160,305 |
Let's try dividing by 4:
16,160,305 ÷ 4 = 4,040,076.25
If the quotient is a whole number, then 4 and 4,040,076.25 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 | 16,160,305 | |
| -1 | 16,160,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 185 | 259 | 1,295 | 12,479 | 62,395 | 87,353 | 436,765 | 461,723 | 2,308,615 | 3,232,061 | 16,160,305 |
| -1 | -5 | -7 | -35 | -37 | -185 | -259 | -1,295 | -12,479 | -62,395 | -87,353 | -436,765 | -461,723 | -2,308,615 | -3,232,061 | -16,160,305 |
Here are some more numbers to try:
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