A:
Positive:
1 x 1420034155 x 2840068343 x 3302405199 x 713585215 x 660481995 x 1427173319 x 427858557 x 16595
Negative:
-1 x -142003415-5 x -28400683-43 x -3302405-199 x -713585-215 x -660481-995 x -142717-3319 x -42785-8557 x -16595
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 142,003,415, 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 | 142,003,415 | |
| -1 | -142,003,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,003,415.
Example:
1 x 142,003,415 = 142,003,415
and
-1 x -142,003,415 = 142,003,415
Notice both answers equal 142,003,415
With that explanation out of the way, let's continue. Next, we take the number 142,003,415 and divide it by 2:
142,003,415 ÷ 2 = 71,001,707.5
If the quotient is a whole number, then 2 and 71,001,707.5 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 | 142,003,415 | |
| -1 | -142,003,415 |
Now, we try dividing 142,003,415 by 3:
142,003,415 ÷ 3 = 47,334,471.6667
If the quotient is a whole number, then 3 and 47,334,471.6667 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 | 142,003,415 | |
| -1 | -142,003,415 |
Let's try dividing by 4:
142,003,415 ÷ 4 = 35,500,853.75
If the quotient is a whole number, then 4 and 35,500,853.75 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 | 142,003,415 | |
| -1 | 142,003,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 199 | 215 | 995 | 3,319 | 8,557 | 16,595 | 42,785 | 142,717 | 660,481 | 713,585 | 3,302,405 | 28,400,683 | 142,003,415 |
| -1 | -5 | -43 | -199 | -215 | -995 | -3,319 | -8,557 | -16,595 | -42,785 | -142,717 | -660,481 | -713,585 | -3,302,405 | -28,400,683 | -142,003,415 |
Here are some more numbers to try:
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