A:
Positive:
1 x 1635543255 x 3271086511 x 1486857525 x 654217355 x 2973715197 x 830225275 x 594743985 x 1660452167 x 754753019 x 541754925 x 3320910835 x 15095
Negative:
-1 x -163554325-5 x -32710865-11 x -14868575-25 x -6542173-55 x -2973715-197 x -830225-275 x -594743-985 x -166045-2167 x -75475-3019 x -54175-4925 x -33209-10835 x -15095
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 163,554,325, 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 | 163,554,325 | |
| -1 | -163,554,325 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,554,325.
Example:
1 x 163,554,325 = 163,554,325
and
-1 x -163,554,325 = 163,554,325
Notice both answers equal 163,554,325
With that explanation out of the way, let's continue. Next, we take the number 163,554,325 and divide it by 2:
163,554,325 ÷ 2 = 81,777,162.5
If the quotient is a whole number, then 2 and 81,777,162.5 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 | 163,554,325 | |
| -1 | -163,554,325 |
Now, we try dividing 163,554,325 by 3:
163,554,325 ÷ 3 = 54,518,108.3333
If the quotient is a whole number, then 3 and 54,518,108.3333 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 | 163,554,325 | |
| -1 | -163,554,325 |
Let's try dividing by 4:
163,554,325 ÷ 4 = 40,888,581.25
If the quotient is a whole number, then 4 and 40,888,581.25 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 | 163,554,325 | |
| -1 | 163,554,325 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 197 | 275 | 985 | 2,167 | 3,019 | 4,925 | 10,835 | 15,095 | 33,209 | 54,175 | 75,475 | 166,045 | 594,743 | 830,225 | 2,973,715 | 6,542,173 | 14,868,575 | 32,710,865 | 163,554,325 |
| -1 | -5 | -11 | -25 | -55 | -197 | -275 | -985 | -2,167 | -3,019 | -4,925 | -10,835 | -15,095 | -33,209 | -54,175 | -75,475 | -166,045 | -594,743 | -830,225 | -2,973,715 | -6,542,173 | -14,868,575 | -32,710,865 | -163,554,325 |
Here are some more numbers to try:
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