A:
Positive:
1 x 551421297 x 787744783 x 664363107 x 515347581 x 94909749 x 73621887 x 621676209 x 8881
Negative:
-1 x -55142129-7 x -7877447-83 x -664363-107 x -515347-581 x -94909-749 x -73621-887 x -62167-6209 x -8881
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 55,142,129, 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 | 55,142,129 | |
| -1 | -55,142,129 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,142,129.
Example:
1 x 55,142,129 = 55,142,129
and
-1 x -55,142,129 = 55,142,129
Notice both answers equal 55,142,129
With that explanation out of the way, let's continue. Next, we take the number 55,142,129 and divide it by 2:
55,142,129 ÷ 2 = 27,571,064.5
If the quotient is a whole number, then 2 and 27,571,064.5 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 | 55,142,129 | |
| -1 | -55,142,129 |
Now, we try dividing 55,142,129 by 3:
55,142,129 ÷ 3 = 18,380,709.6667
If the quotient is a whole number, then 3 and 18,380,709.6667 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 | 55,142,129 | |
| -1 | -55,142,129 |
Let's try dividing by 4:
55,142,129 ÷ 4 = 13,785,532.25
If the quotient is a whole number, then 4 and 13,785,532.25 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 | 55,142,129 | |
| -1 | 55,142,129 |
If you did it right, you will end up with this table:
| 1 | 7 | 83 | 107 | 581 | 749 | 887 | 6,209 | 8,881 | 62,167 | 73,621 | 94,909 | 515,347 | 664,363 | 7,877,447 | 55,142,129 |
| -1 | -7 | -83 | -107 | -581 | -749 | -887 | -6,209 | -8,881 | -62,167 | -73,621 | -94,909 | -515,347 | -664,363 | -7,877,447 | -55,142,129 |
Here are some more numbers to try:
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