A:
Positive:
1 x 10200103111 x 927282143 x 237211789 x 1146079473 x 215647979 x 1041892423 x 420973827 x 26653
Negative:
-1 x -102001031-11 x -9272821-43 x -2372117-89 x -1146079-473 x -215647-979 x -104189-2423 x -42097-3827 x -26653
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 102,001,031, 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 | 102,001,031 | |
| -1 | -102,001,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,001,031.
Example:
1 x 102,001,031 = 102,001,031
and
-1 x -102,001,031 = 102,001,031
Notice both answers equal 102,001,031
With that explanation out of the way, let's continue. Next, we take the number 102,001,031 and divide it by 2:
102,001,031 ÷ 2 = 51,000,515.5
If the quotient is a whole number, then 2 and 51,000,515.5 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 | 102,001,031 | |
| -1 | -102,001,031 |
Now, we try dividing 102,001,031 by 3:
102,001,031 ÷ 3 = 34,000,343.6667
If the quotient is a whole number, then 3 and 34,000,343.6667 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 | 102,001,031 | |
| -1 | -102,001,031 |
Let's try dividing by 4:
102,001,031 ÷ 4 = 25,500,257.75
If the quotient is a whole number, then 4 and 25,500,257.75 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 | 102,001,031 | |
| -1 | 102,001,031 |
If you did it right, you will end up with this table:
| 1 | 11 | 43 | 89 | 473 | 979 | 2,423 | 3,827 | 26,653 | 42,097 | 104,189 | 215,647 | 1,146,079 | 2,372,117 | 9,272,821 | 102,001,031 |
| -1 | -11 | -43 | -89 | -473 | -979 | -2,423 | -3,827 | -26,653 | -42,097 | -104,189 | -215,647 | -1,146,079 | -2,372,117 | -9,272,821 | -102,001,031 |
Here are some more numbers to try:
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