A:
Positive:
1 x 716725755 x 1433451513 x 551327525 x 286690365 x 110265583 x 863525325 x 220531415 x 1727051079 x 664252075 x 345412657 x 269755395 x 13285
Negative:
-1 x -71672575-5 x -14334515-13 x -5513275-25 x -2866903-65 x -1102655-83 x -863525-325 x -220531-415 x -172705-1079 x -66425-2075 x -34541-2657 x -26975-5395 x -13285
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 71,672,575, 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 | 71,672,575 | |
| -1 | -71,672,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,672,575.
Example:
1 x 71,672,575 = 71,672,575
and
-1 x -71,672,575 = 71,672,575
Notice both answers equal 71,672,575
With that explanation out of the way, let's continue. Next, we take the number 71,672,575 and divide it by 2:
71,672,575 ÷ 2 = 35,836,287.5
If the quotient is a whole number, then 2 and 35,836,287.5 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 | 71,672,575 | |
| -1 | -71,672,575 |
Now, we try dividing 71,672,575 by 3:
71,672,575 ÷ 3 = 23,890,858.3333
If the quotient is a whole number, then 3 and 23,890,858.3333 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 | 71,672,575 | |
| -1 | -71,672,575 |
Let's try dividing by 4:
71,672,575 ÷ 4 = 17,918,143.75
If the quotient is a whole number, then 4 and 17,918,143.75 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 | 71,672,575 | |
| -1 | 71,672,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 83 | 325 | 415 | 1,079 | 2,075 | 2,657 | 5,395 | 13,285 | 26,975 | 34,541 | 66,425 | 172,705 | 220,531 | 863,525 | 1,102,655 | 2,866,903 | 5,513,275 | 14,334,515 | 71,672,575 |
| -1 | -5 | -13 | -25 | -65 | -83 | -325 | -415 | -1,079 | -2,075 | -2,657 | -5,395 | -13,285 | -26,975 | -34,541 | -66,425 | -172,705 | -220,531 | -863,525 | -1,102,655 | -2,866,903 | -5,513,275 | -14,334,515 | -71,672,575 |
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