A:
Positive:
1 x 674026437 x 962894911 x 612751371 x 94933377 x 875359497 x 135619781 x 863035467 x 12329
Negative:
-1 x -67402643-7 x -9628949-11 x -6127513-71 x -949333-77 x -875359-497 x -135619-781 x -86303-5467 x -12329
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 67,402,643, 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 | 67,402,643 | |
| -1 | -67,402,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 67,402,643.
Example:
1 x 67,402,643 = 67,402,643
and
-1 x -67,402,643 = 67,402,643
Notice both answers equal 67,402,643
With that explanation out of the way, let's continue. Next, we take the number 67,402,643 and divide it by 2:
67,402,643 ÷ 2 = 33,701,321.5
If the quotient is a whole number, then 2 and 33,701,321.5 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 | 67,402,643 | |
| -1 | -67,402,643 |
Now, we try dividing 67,402,643 by 3:
67,402,643 ÷ 3 = 22,467,547.6667
If the quotient is a whole number, then 3 and 22,467,547.6667 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 | 67,402,643 | |
| -1 | -67,402,643 |
Let's try dividing by 4:
67,402,643 ÷ 4 = 16,850,660.75
If the quotient is a whole number, then 4 and 16,850,660.75 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 | 67,402,643 | |
| -1 | 67,402,643 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 71 | 77 | 497 | 781 | 5,467 | 12,329 | 86,303 | 135,619 | 875,359 | 949,333 | 6,127,513 | 9,628,949 | 67,402,643 |
| -1 | -7 | -11 | -71 | -77 | -497 | -781 | -5,467 | -12,329 | -86,303 | -135,619 | -875,359 | -949,333 | -6,127,513 | -9,628,949 | -67,402,643 |
Here are some more numbers to try:
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