A:
Positive:
1 x 1623361255 x 324672257 x 2319087525 x 649344535 x 4638175125 x 1298689175 x 927635875 x 185527
Negative:
-1 x -162336125-5 x -32467225-7 x -23190875-25 x -6493445-35 x -4638175-125 x -1298689-175 x -927635-875 x -185527
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 162,336,125, 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 | 162,336,125 | |
| -1 | -162,336,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,336,125.
Example:
1 x 162,336,125 = 162,336,125
and
-1 x -162,336,125 = 162,336,125
Notice both answers equal 162,336,125
With that explanation out of the way, let's continue. Next, we take the number 162,336,125 and divide it by 2:
162,336,125 ÷ 2 = 81,168,062.5
If the quotient is a whole number, then 2 and 81,168,062.5 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 | 162,336,125 | |
| -1 | -162,336,125 |
Now, we try dividing 162,336,125 by 3:
162,336,125 ÷ 3 = 54,112,041.6667
If the quotient is a whole number, then 3 and 54,112,041.6667 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 | 162,336,125 | |
| -1 | -162,336,125 |
Let's try dividing by 4:
162,336,125 ÷ 4 = 40,584,031.25
If the quotient is a whole number, then 4 and 40,584,031.25 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 | 162,336,125 | |
| -1 | 162,336,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 125 | 175 | 875 | 185,527 | 927,635 | 1,298,689 | 4,638,175 | 6,493,445 | 23,190,875 | 32,467,225 | 162,336,125 |
| -1 | -5 | -7 | -25 | -35 | -125 | -175 | -875 | -185,527 | -927,635 | -1,298,689 | -4,638,175 | -6,493,445 | -23,190,875 | -32,467,225 | -162,336,125 |
Here are some more numbers to try:
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