A:
Positive:
1 x 1565204455 x 3130408917 x 920708585 x 1841417137 x 1142485685 x 2284972329 x 6720511645 x 13441
Negative:
-1 x -156520445-5 x -31304089-17 x -9207085-85 x -1841417-137 x -1142485-685 x -228497-2329 x -67205-11645 x -13441
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 156,520,445, 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 | 156,520,445 | |
| -1 | -156,520,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,520,445.
Example:
1 x 156,520,445 = 156,520,445
and
-1 x -156,520,445 = 156,520,445
Notice both answers equal 156,520,445
With that explanation out of the way, let's continue. Next, we take the number 156,520,445 and divide it by 2:
156,520,445 ÷ 2 = 78,260,222.5
If the quotient is a whole number, then 2 and 78,260,222.5 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 | 156,520,445 | |
| -1 | -156,520,445 |
Now, we try dividing 156,520,445 by 3:
156,520,445 ÷ 3 = 52,173,481.6667
If the quotient is a whole number, then 3 and 52,173,481.6667 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 | 156,520,445 | |
| -1 | -156,520,445 |
Let's try dividing by 4:
156,520,445 ÷ 4 = 39,130,111.25
If the quotient is a whole number, then 4 and 39,130,111.25 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 | 156,520,445 | |
| -1 | 156,520,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 137 | 685 | 2,329 | 11,645 | 13,441 | 67,205 | 228,497 | 1,142,485 | 1,841,417 | 9,207,085 | 31,304,089 | 156,520,445 |
| -1 | -5 | -17 | -85 | -137 | -685 | -2,329 | -11,645 | -13,441 | -67,205 | -228,497 | -1,142,485 | -1,841,417 | -9,207,085 | -31,304,089 | -156,520,445 |
Here are some more numbers to try:
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