A:
Positive:
1 x 1777255711 x 161568741 x 433477157 x 113201251 x 70807451 x 394071727 x 102912761 x 6437
Negative:
-1 x -17772557-11 x -1615687-41 x -433477-157 x -113201-251 x -70807-451 x -39407-1727 x -10291-2761 x -6437
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 17,772,557, 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 | 17,772,557 | |
| -1 | -17,772,557 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,772,557.
Example:
1 x 17,772,557 = 17,772,557
and
-1 x -17,772,557 = 17,772,557
Notice both answers equal 17,772,557
With that explanation out of the way, let's continue. Next, we take the number 17,772,557 and divide it by 2:
17,772,557 ÷ 2 = 8,886,278.5
If the quotient is a whole number, then 2 and 8,886,278.5 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 | 17,772,557 | |
| -1 | -17,772,557 |
Now, we try dividing 17,772,557 by 3:
17,772,557 ÷ 3 = 5,924,185.6667
If the quotient is a whole number, then 3 and 5,924,185.6667 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 | 17,772,557 | |
| -1 | -17,772,557 |
Let's try dividing by 4:
17,772,557 ÷ 4 = 4,443,139.25
If the quotient is a whole number, then 4 and 4,443,139.25 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 | 17,772,557 | |
| -1 | 17,772,557 |
If you did it right, you will end up with this table:
| 1 | 11 | 41 | 157 | 251 | 451 | 1,727 | 2,761 | 6,437 | 10,291 | 39,407 | 70,807 | 113,201 | 433,477 | 1,615,687 | 17,772,557 |
| -1 | -11 | -41 | -157 | -251 | -451 | -1,727 | -2,761 | -6,437 | -10,291 | -39,407 | -70,807 | -113,201 | -433,477 | -1,615,687 | -17,772,557 |
Here are some more numbers to try:
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