A:
Positive:
1 x 4042134119 x 212743973 x 553717151 x 267691193 x 2094371387 x 291432869 x 140893667 x 11023
Negative:
-1 x -40421341-19 x -2127439-73 x -553717-151 x -267691-193 x -209437-1387 x -29143-2869 x -14089-3667 x -11023
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 40,421,341, 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 | 40,421,341 | |
| -1 | -40,421,341 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,421,341.
Example:
1 x 40,421,341 = 40,421,341
and
-1 x -40,421,341 = 40,421,341
Notice both answers equal 40,421,341
With that explanation out of the way, let's continue. Next, we take the number 40,421,341 and divide it by 2:
40,421,341 ÷ 2 = 20,210,670.5
If the quotient is a whole number, then 2 and 20,210,670.5 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 | 40,421,341 | |
| -1 | -40,421,341 |
Now, we try dividing 40,421,341 by 3:
40,421,341 ÷ 3 = 13,473,780.3333
If the quotient is a whole number, then 3 and 13,473,780.3333 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 | 40,421,341 | |
| -1 | -40,421,341 |
Let's try dividing by 4:
40,421,341 ÷ 4 = 10,105,335.25
If the quotient is a whole number, then 4 and 10,105,335.25 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 | 40,421,341 | |
| -1 | 40,421,341 |
If you did it right, you will end up with this table:
| 1 | 19 | 73 | 151 | 193 | 1,387 | 2,869 | 3,667 | 11,023 | 14,089 | 29,143 | 209,437 | 267,691 | 553,717 | 2,127,439 | 40,421,341 |
| -1 | -19 | -73 | -151 | -193 | -1,387 | -2,869 | -3,667 | -11,023 | -14,089 | -29,143 | -209,437 | -267,691 | -553,717 | -2,127,439 | -40,421,341 |
Here are some more numbers to try:
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