A:
Positive:
1 x 420054955 x 84010997 x 600078535 x 120015749 x 857255245 x 171451343 x 1224651715 x 244932401 x 174953499 x 12005
Negative:
-1 x -42005495-5 x -8401099-7 x -6000785-35 x -1200157-49 x -857255-245 x -171451-343 x -122465-1715 x -24493-2401 x -17495-3499 x -12005
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 42,005,495, 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 | 42,005,495 | |
| -1 | -42,005,495 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,005,495.
Example:
1 x 42,005,495 = 42,005,495
and
-1 x -42,005,495 = 42,005,495
Notice both answers equal 42,005,495
With that explanation out of the way, let's continue. Next, we take the number 42,005,495 and divide it by 2:
42,005,495 ÷ 2 = 21,002,747.5
If the quotient is a whole number, then 2 and 21,002,747.5 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 | 42,005,495 | |
| -1 | -42,005,495 |
Now, we try dividing 42,005,495 by 3:
42,005,495 ÷ 3 = 14,001,831.6667
If the quotient is a whole number, then 3 and 14,001,831.6667 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 | 42,005,495 | |
| -1 | -42,005,495 |
Let's try dividing by 4:
42,005,495 ÷ 4 = 10,501,373.75
If the quotient is a whole number, then 4 and 10,501,373.75 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 | 42,005,495 | |
| -1 | 42,005,495 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 245 | 343 | 1,715 | 2,401 | 3,499 | 12,005 | 17,495 | 24,493 | 122,465 | 171,451 | 857,255 | 1,200,157 | 6,000,785 | 8,401,099 | 42,005,495 |
| -1 | -5 | -7 | -35 | -49 | -245 | -343 | -1,715 | -2,401 | -3,499 | -12,005 | -17,495 | -24,493 | -122,465 | -171,451 | -857,255 | -1,200,157 | -6,000,785 | -8,401,099 | -42,005,495 |
Here are some more numbers to try:
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