A:
Positive:
1 x 190471755 x 38094357 x 272102525 x 76188731 x 61442535 x 544205155 x 122885175 x 108841217 x 87775775 x 245771085 x 175553511 x 5425
Negative:
-1 x -19047175-5 x -3809435-7 x -2721025-25 x -761887-31 x -614425-35 x -544205-155 x -122885-175 x -108841-217 x -87775-775 x -24577-1085 x -17555-3511 x -5425
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 19,047,175, 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 | 19,047,175 | |
| -1 | -19,047,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,047,175.
Example:
1 x 19,047,175 = 19,047,175
and
-1 x -19,047,175 = 19,047,175
Notice both answers equal 19,047,175
With that explanation out of the way, let's continue. Next, we take the number 19,047,175 and divide it by 2:
19,047,175 ÷ 2 = 9,523,587.5
If the quotient is a whole number, then 2 and 9,523,587.5 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 | 19,047,175 | |
| -1 | -19,047,175 |
Now, we try dividing 19,047,175 by 3:
19,047,175 ÷ 3 = 6,349,058.3333
If the quotient is a whole number, then 3 and 6,349,058.3333 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 | 19,047,175 | |
| -1 | -19,047,175 |
Let's try dividing by 4:
19,047,175 ÷ 4 = 4,761,793.75
If the quotient is a whole number, then 4 and 4,761,793.75 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 | 19,047,175 | |
| -1 | 19,047,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 31 | 35 | 155 | 175 | 217 | 775 | 1,085 | 3,511 | 5,425 | 17,555 | 24,577 | 87,775 | 108,841 | 122,885 | 544,205 | 614,425 | 761,887 | 2,721,025 | 3,809,435 | 19,047,175 |
| -1 | -5 | -7 | -25 | -31 | -35 | -155 | -175 | -217 | -775 | -1,085 | -3,511 | -5,425 | -17,555 | -24,577 | -87,775 | -108,841 | -122,885 | -544,205 | -614,425 | -761,887 | -2,721,025 | -3,809,435 | -19,047,175 |
Here are some more numbers to try:
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