A:
Positive:
1 x 7540715931 x 243248941 x 183919979 x 954521751 x 1004091271 x 593292449 x 307913239 x 23281
Negative:
-1 x -75407159-31 x -2432489-41 x -1839199-79 x -954521-751 x -100409-1271 x -59329-2449 x -30791-3239 x -23281
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 75,407,159, 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 | 75,407,159 | |
| -1 | -75,407,159 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,407,159.
Example:
1 x 75,407,159 = 75,407,159
and
-1 x -75,407,159 = 75,407,159
Notice both answers equal 75,407,159
With that explanation out of the way, let's continue. Next, we take the number 75,407,159 and divide it by 2:
75,407,159 ÷ 2 = 37,703,579.5
If the quotient is a whole number, then 2 and 37,703,579.5 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 | 75,407,159 | |
| -1 | -75,407,159 |
Now, we try dividing 75,407,159 by 3:
75,407,159 ÷ 3 = 25,135,719.6667
If the quotient is a whole number, then 3 and 25,135,719.6667 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 | 75,407,159 | |
| -1 | -75,407,159 |
Let's try dividing by 4:
75,407,159 ÷ 4 = 18,851,789.75
If the quotient is a whole number, then 4 and 18,851,789.75 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 | 75,407,159 | |
| -1 | 75,407,159 |
If you did it right, you will end up with this table:
| 1 | 31 | 41 | 79 | 751 | 1,271 | 2,449 | 3,239 | 23,281 | 30,791 | 59,329 | 100,409 | 954,521 | 1,839,199 | 2,432,489 | 75,407,159 |
| -1 | -31 | -41 | -79 | -751 | -1,271 | -2,449 | -3,239 | -23,281 | -30,791 | -59,329 | -100,409 | -954,521 | -1,839,199 | -2,432,489 | -75,407,159 |
Here are some more numbers to try:
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