A:
Positive:
1 x 1424046897 x 2034352747 x 302988779 x 1802591329 x 432841553 x 2575133713 x 383535479 x 25991
Negative:
-1 x -142404689-7 x -20343527-47 x -3029887-79 x -1802591-329 x -432841-553 x -257513-3713 x -38353-5479 x -25991
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 142,404,689, 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 | 142,404,689 | |
| -1 | -142,404,689 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,404,689.
Example:
1 x 142,404,689 = 142,404,689
and
-1 x -142,404,689 = 142,404,689
Notice both answers equal 142,404,689
With that explanation out of the way, let's continue. Next, we take the number 142,404,689 and divide it by 2:
142,404,689 ÷ 2 = 71,202,344.5
If the quotient is a whole number, then 2 and 71,202,344.5 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 | 142,404,689 | |
| -1 | -142,404,689 |
Now, we try dividing 142,404,689 by 3:
142,404,689 ÷ 3 = 47,468,229.6667
If the quotient is a whole number, then 3 and 47,468,229.6667 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 | 142,404,689 | |
| -1 | -142,404,689 |
Let's try dividing by 4:
142,404,689 ÷ 4 = 35,601,172.25
If the quotient is a whole number, then 4 and 35,601,172.25 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 | 142,404,689 | |
| -1 | 142,404,689 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 79 | 329 | 553 | 3,713 | 5,479 | 25,991 | 38,353 | 257,513 | 432,841 | 1,802,591 | 3,029,887 | 20,343,527 | 142,404,689 |
| -1 | -7 | -47 | -79 | -329 | -553 | -3,713 | -5,479 | -25,991 | -38,353 | -257,513 | -432,841 | -1,802,591 | -3,029,887 | -20,343,527 | -142,404,689 |
Here are some more numbers to try:
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