A:
Positive:
1 x 321202 x 160604 x 80305 x 64248 x 401510 x 321211 x 292020 x 160622 x 146040 x 80344 x 73055 x 58473 x 44088 x 365110 x 292146 x 220
Negative:
-1 x -32120-2 x -16060-4 x -8030-5 x -6424-8 x -4015-10 x -3212-11 x -2920-20 x -1606-22 x -1460-40 x -803-44 x -730-55 x -584-73 x -440-88 x -365-110 x -292-146 x -220
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 32,120, 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 | 32,120 | |
| -1 | -32,120 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 32,120.
Example:
1 x 32,120 = 32,120
and
-1 x -32,120 = 32,120
Notice both answers equal 32,120
With that explanation out of the way, let's continue. Next, we take the number 32,120 and divide it by 2:
32,120 ÷ 2 = 16,060
If the quotient is a whole number, then 2 and 16,060 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 16,060 | 32,120 | |
| -1 | -2 | -16,060 | -32,120 |
Now, we try dividing 32,120 by 3:
32,120 ÷ 3 = 10,706.6667
If the quotient is a whole number, then 3 and 10,706.6667 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 | 2 | 16,060 | 32,120 | |
| -1 | -2 | -16,060 | -32,120 |
Let's try dividing by 4:
32,120 ÷ 4 = 8,030
If the quotient is a whole number, then 4 and 8,030 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 4 | 8,030 | 16,060 | 32,120 | |
| -1 | -2 | -4 | -8,030 | -16,060 | 32,120 |
If you did it right, you will end up with this table:
| 1 | 2 | 4 | 5 | 8 | 10 | 11 | 20 | 22 | 40 | 44 | 55 | 73 | 88 | 110 | 146 | 220 | 292 | 365 | 440 | 584 | 730 | 803 | 1,460 | 1,606 | 2,920 | 3,212 | 4,015 | 6,424 | 8,030 | 16,060 | 32,120 |
| -1 | -2 | -4 | -5 | -8 | -10 | -11 | -20 | -22 | -40 | -44 | -55 | -73 | -88 | -110 | -146 | -220 | -292 | -365 | -440 | -584 | -730 | -803 | -1,460 | -1,606 | -2,920 | -3,212 | -4,015 | -6,424 | -8,030 | -16,060 | -32,120 |
Here are some more numbers to try:
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