A:
Positive:
1 x 4010332155 x 8020664311 x 3645756555 x 729151361 x 6574315305 x 1314863671 x 5976653355 x 119533
Negative:
-1 x -401033215-5 x -80206643-11 x -36457565-55 x -7291513-61 x -6574315-305 x -1314863-671 x -597665-3355 x -119533
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 401,033,215, 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 | 401,033,215 | |
| -1 | -401,033,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 401,033,215.
Example:
1 x 401,033,215 = 401,033,215
and
-1 x -401,033,215 = 401,033,215
Notice both answers equal 401,033,215
With that explanation out of the way, let's continue. Next, we take the number 401,033,215 and divide it by 2:
401,033,215 ÷ 2 = 200,516,607.5
If the quotient is a whole number, then 2 and 200,516,607.5 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 | 401,033,215 | |
| -1 | -401,033,215 |
Now, we try dividing 401,033,215 by 3:
401,033,215 ÷ 3 = 133,677,738.3333
If the quotient is a whole number, then 3 and 133,677,738.3333 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 | 401,033,215 | |
| -1 | -401,033,215 |
Let's try dividing by 4:
401,033,215 ÷ 4 = 100,258,303.75
If the quotient is a whole number, then 4 and 100,258,303.75 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 | 401,033,215 | |
| -1 | 401,033,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 61 | 305 | 671 | 3,355 | 119,533 | 597,665 | 1,314,863 | 6,574,315 | 7,291,513 | 36,457,565 | 80,206,643 | 401,033,215 |
| -1 | -5 | -11 | -55 | -61 | -305 | -671 | -3,355 | -119,533 | -597,665 | -1,314,863 | -6,574,315 | -7,291,513 | -36,457,565 | -80,206,643 | -401,033,215 |
Here are some more numbers to try:
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