A:
Positive:
1 x 402346217 x 574780331 x 129789179 x 509299217 x 185413553 x 727572347 x 171432449 x 16429
Negative:
-1 x -40234621-7 x -5747803-31 x -1297891-79 x -509299-217 x -185413-553 x -72757-2347 x -17143-2449 x -16429
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 40,234,621, 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 | 40,234,621 | |
| -1 | -40,234,621 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,234,621.
Example:
1 x 40,234,621 = 40,234,621
and
-1 x -40,234,621 = 40,234,621
Notice both answers equal 40,234,621
With that explanation out of the way, let's continue. Next, we take the number 40,234,621 and divide it by 2:
40,234,621 ÷ 2 = 20,117,310.5
If the quotient is a whole number, then 2 and 20,117,310.5 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 | 40,234,621 | |
| -1 | -40,234,621 |
Now, we try dividing 40,234,621 by 3:
40,234,621 ÷ 3 = 13,411,540.3333
If the quotient is a whole number, then 3 and 13,411,540.3333 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 | 40,234,621 | |
| -1 | -40,234,621 |
Let's try dividing by 4:
40,234,621 ÷ 4 = 10,058,655.25
If the quotient is a whole number, then 4 and 10,058,655.25 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 | 40,234,621 | |
| -1 | 40,234,621 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 79 | 217 | 553 | 2,347 | 2,449 | 16,429 | 17,143 | 72,757 | 185,413 | 509,299 | 1,297,891 | 5,747,803 | 40,234,621 |
| -1 | -7 | -31 | -79 | -217 | -553 | -2,347 | -2,449 | -16,429 | -17,143 | -72,757 | -185,413 | -509,299 | -1,297,891 | -5,747,803 | -40,234,621 |
Here are some more numbers to try:
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