A:
Positive:
1 x 1630725855 x 3261451713 x 1254404517 x 959250565 x 250880985 x 1918501221 x 737885289 x 5642651105 x 1475771445 x 1128533757 x 434058681 x 18785
Negative:
-1 x -163072585-5 x -32614517-13 x -12544045-17 x -9592505-65 x -2508809-85 x -1918501-221 x -737885-289 x -564265-1105 x -147577-1445 x -112853-3757 x -43405-8681 x -18785
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 163,072,585, 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 | 163,072,585 | |
| -1 | -163,072,585 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,072,585.
Example:
1 x 163,072,585 = 163,072,585
and
-1 x -163,072,585 = 163,072,585
Notice both answers equal 163,072,585
With that explanation out of the way, let's continue. Next, we take the number 163,072,585 and divide it by 2:
163,072,585 ÷ 2 = 81,536,292.5
If the quotient is a whole number, then 2 and 81,536,292.5 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 | 163,072,585 | |
| -1 | -163,072,585 |
Now, we try dividing 163,072,585 by 3:
163,072,585 ÷ 3 = 54,357,528.3333
If the quotient is a whole number, then 3 and 54,357,528.3333 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 | 163,072,585 | |
| -1 | -163,072,585 |
Let's try dividing by 4:
163,072,585 ÷ 4 = 40,768,146.25
If the quotient is a whole number, then 4 and 40,768,146.25 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 | 163,072,585 | |
| -1 | 163,072,585 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 17 | 65 | 85 | 221 | 289 | 1,105 | 1,445 | 3,757 | 8,681 | 18,785 | 43,405 | 112,853 | 147,577 | 564,265 | 737,885 | 1,918,501 | 2,508,809 | 9,592,505 | 12,544,045 | 32,614,517 | 163,072,585 |
| -1 | -5 | -13 | -17 | -65 | -85 | -221 | -289 | -1,105 | -1,445 | -3,757 | -8,681 | -18,785 | -43,405 | -112,853 | -147,577 | -564,265 | -737,885 | -1,918,501 | -2,508,809 | -9,592,505 | -12,544,045 | -32,614,517 | -163,072,585 |
Here are some more numbers to try:
Try the factor calculator