A:
Positive:
1 x 685741755 x 1371483517 x 403377525 x 274296747 x 145902585 x 806755235 x 291805425 x 161351799 x 858251175 x 583613433 x 199753995 x 17165
Negative:
-1 x -68574175-5 x -13714835-17 x -4033775-25 x -2742967-47 x -1459025-85 x -806755-235 x -291805-425 x -161351-799 x -85825-1175 x -58361-3433 x -19975-3995 x -17165
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 68,574,175, 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 | 68,574,175 | |
| -1 | -68,574,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,574,175.
Example:
1 x 68,574,175 = 68,574,175
and
-1 x -68,574,175 = 68,574,175
Notice both answers equal 68,574,175
With that explanation out of the way, let's continue. Next, we take the number 68,574,175 and divide it by 2:
68,574,175 ÷ 2 = 34,287,087.5
If the quotient is a whole number, then 2 and 34,287,087.5 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 | 68,574,175 | |
| -1 | -68,574,175 |
Now, we try dividing 68,574,175 by 3:
68,574,175 ÷ 3 = 22,858,058.3333
If the quotient is a whole number, then 3 and 22,858,058.3333 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 | 68,574,175 | |
| -1 | -68,574,175 |
Let's try dividing by 4:
68,574,175 ÷ 4 = 17,143,543.75
If the quotient is a whole number, then 4 and 17,143,543.75 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 | 68,574,175 | |
| -1 | 68,574,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 47 | 85 | 235 | 425 | 799 | 1,175 | 3,433 | 3,995 | 17,165 | 19,975 | 58,361 | 85,825 | 161,351 | 291,805 | 806,755 | 1,459,025 | 2,742,967 | 4,033,775 | 13,714,835 | 68,574,175 |
| -1 | -5 | -17 | -25 | -47 | -85 | -235 | -425 | -799 | -1,175 | -3,433 | -3,995 | -17,165 | -19,975 | -58,361 | -85,825 | -161,351 | -291,805 | -806,755 | -1,459,025 | -2,742,967 | -4,033,775 | -13,714,835 | -68,574,175 |
Here are some more numbers to try:
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