A:
Positive:
1 x 1021435037 x 1459192911 x 928577377 x 1326539709 x 1440671871 x 545934963 x 205817799 x 13097
Negative:
-1 x -102143503-7 x -14591929-11 x -9285773-77 x -1326539-709 x -144067-1871 x -54593-4963 x -20581-7799 x -13097
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 102,143,503, 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 | 102,143,503 | |
| -1 | -102,143,503 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,143,503.
Example:
1 x 102,143,503 = 102,143,503
and
-1 x -102,143,503 = 102,143,503
Notice both answers equal 102,143,503
With that explanation out of the way, let's continue. Next, we take the number 102,143,503 and divide it by 2:
102,143,503 ÷ 2 = 51,071,751.5
If the quotient is a whole number, then 2 and 51,071,751.5 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 | 102,143,503 | |
| -1 | -102,143,503 |
Now, we try dividing 102,143,503 by 3:
102,143,503 ÷ 3 = 34,047,834.3333
If the quotient is a whole number, then 3 and 34,047,834.3333 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 | 102,143,503 | |
| -1 | -102,143,503 |
Let's try dividing by 4:
102,143,503 ÷ 4 = 25,535,875.75
If the quotient is a whole number, then 4 and 25,535,875.75 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 | 102,143,503 | |
| -1 | 102,143,503 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 709 | 1,871 | 4,963 | 7,799 | 13,097 | 20,581 | 54,593 | 144,067 | 1,326,539 | 9,285,773 | 14,591,929 | 102,143,503 |
| -1 | -7 | -11 | -77 | -709 | -1,871 | -4,963 | -7,799 | -13,097 | -20,581 | -54,593 | -144,067 | -1,326,539 | -9,285,773 | -14,591,929 | -102,143,503 |
Here are some more numbers to try:
Try the factor calculator