A:
Positive:
1 x 1421427355 x 284285477 x 2030610535 x 406122143 x 3305645215 x 661129301 x 4722351505 x 94447
Negative:
-1 x -142142735-5 x -28428547-7 x -20306105-35 x -4061221-43 x -3305645-215 x -661129-301 x -472235-1505 x -94447
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 142,142,735, 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 | 142,142,735 | |
| -1 | -142,142,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,142,735.
Example:
1 x 142,142,735 = 142,142,735
and
-1 x -142,142,735 = 142,142,735
Notice both answers equal 142,142,735
With that explanation out of the way, let's continue. Next, we take the number 142,142,735 and divide it by 2:
142,142,735 ÷ 2 = 71,071,367.5
If the quotient is a whole number, then 2 and 71,071,367.5 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 | 142,142,735 | |
| -1 | -142,142,735 |
Now, we try dividing 142,142,735 by 3:
142,142,735 ÷ 3 = 47,380,911.6667
If the quotient is a whole number, then 3 and 47,380,911.6667 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 | 142,142,735 | |
| -1 | -142,142,735 |
Let's try dividing by 4:
142,142,735 ÷ 4 = 35,535,683.75
If the quotient is a whole number, then 4 and 35,535,683.75 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 | 142,142,735 | |
| -1 | 142,142,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 43 | 215 | 301 | 1,505 | 94,447 | 472,235 | 661,129 | 3,305,645 | 4,061,221 | 20,306,105 | 28,428,547 | 142,142,735 |
| -1 | -5 | -7 | -35 | -43 | -215 | -301 | -1,505 | -94,447 | -472,235 | -661,129 | -3,305,645 | -4,061,221 | -20,306,105 | -28,428,547 | -142,142,735 |
Here are some more numbers to try:
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