A:
Positive:
1 x 1021433655 x 2042867329 x 3522185145 x 704437257 x 3974451285 x 794892741 x 372657453 x 13705
Negative:
-1 x -102143365-5 x -20428673-29 x -3522185-145 x -704437-257 x -397445-1285 x -79489-2741 x -37265-7453 x -13705
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 102,143,365, 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 | 102,143,365 | |
| -1 | -102,143,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,143,365.
Example:
1 x 102,143,365 = 102,143,365
and
-1 x -102,143,365 = 102,143,365
Notice both answers equal 102,143,365
With that explanation out of the way, let's continue. Next, we take the number 102,143,365 and divide it by 2:
102,143,365 ÷ 2 = 51,071,682.5
If the quotient is a whole number, then 2 and 51,071,682.5 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 | 102,143,365 | |
| -1 | -102,143,365 |
Now, we try dividing 102,143,365 by 3:
102,143,365 ÷ 3 = 34,047,788.3333
If the quotient is a whole number, then 3 and 34,047,788.3333 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 | 102,143,365 | |
| -1 | -102,143,365 |
Let's try dividing by 4:
102,143,365 ÷ 4 = 25,535,841.25
If the quotient is a whole number, then 4 and 25,535,841.25 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 | 102,143,365 | |
| -1 | 102,143,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 257 | 1,285 | 2,741 | 7,453 | 13,705 | 37,265 | 79,489 | 397,445 | 704,437 | 3,522,185 | 20,428,673 | 102,143,365 |
| -1 | -5 | -29 | -145 | -257 | -1,285 | -2,741 | -7,453 | -13,705 | -37,265 | -79,489 | -397,445 | -704,437 | -3,522,185 | -20,428,673 | -102,143,365 |
Here are some more numbers to try:
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