A:
Positive:
1 x 420021255 x 840042511 x 381837525 x 168008555 x 763675121 x 347125125 x 336017275 x 152735605 x 694251375 x 305472777 x 151253025 x 13885
Negative:
-1 x -42002125-5 x -8400425-11 x -3818375-25 x -1680085-55 x -763675-121 x -347125-125 x -336017-275 x -152735-605 x -69425-1375 x -30547-2777 x -15125-3025 x -13885
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 42,002,125, 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 | 42,002,125 | |
| -1 | -42,002,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,002,125.
Example:
1 x 42,002,125 = 42,002,125
and
-1 x -42,002,125 = 42,002,125
Notice both answers equal 42,002,125
With that explanation out of the way, let's continue. Next, we take the number 42,002,125 and divide it by 2:
42,002,125 ÷ 2 = 21,001,062.5
If the quotient is a whole number, then 2 and 21,001,062.5 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 | 42,002,125 | |
| -1 | -42,002,125 |
Now, we try dividing 42,002,125 by 3:
42,002,125 ÷ 3 = 14,000,708.3333
If the quotient is a whole number, then 3 and 14,000,708.3333 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 | 42,002,125 | |
| -1 | -42,002,125 |
Let's try dividing by 4:
42,002,125 ÷ 4 = 10,500,531.25
If the quotient is a whole number, then 4 and 10,500,531.25 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 | 42,002,125 | |
| -1 | 42,002,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 121 | 125 | 275 | 605 | 1,375 | 2,777 | 3,025 | 13,885 | 15,125 | 30,547 | 69,425 | 152,735 | 336,017 | 347,125 | 763,675 | 1,680,085 | 3,818,375 | 8,400,425 | 42,002,125 |
| -1 | -5 | -11 | -25 | -55 | -121 | -125 | -275 | -605 | -1,375 | -2,777 | -3,025 | -13,885 | -15,125 | -30,547 | -69,425 | -152,735 | -336,017 | -347,125 | -763,675 | -1,680,085 | -3,818,375 | -8,400,425 | -42,002,125 |
Here are some more numbers to try:
Try the factor calculator