A:
Positive:
1 x 76364340737 x 2063901143 x 1775914989 x 85802631591 x 4799773293 x 2318993827 x 1995415393 x 141599
Negative:
-1 x -763643407-37 x -20639011-43 x -17759149-89 x -8580263-1591 x -479977-3293 x -231899-3827 x -199541-5393 x -141599
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 763,643,407, 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 | 763,643,407 | |
| -1 | -763,643,407 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 763,643,407.
Example:
1 x 763,643,407 = 763,643,407
and
-1 x -763,643,407 = 763,643,407
Notice both answers equal 763,643,407
With that explanation out of the way, let's continue. Next, we take the number 763,643,407 and divide it by 2:
763,643,407 ÷ 2 = 381,821,703.5
If the quotient is a whole number, then 2 and 381,821,703.5 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 | 763,643,407 | |
| -1 | -763,643,407 |
Now, we try dividing 763,643,407 by 3:
763,643,407 ÷ 3 = 254,547,802.3333
If the quotient is a whole number, then 3 and 254,547,802.3333 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 | 763,643,407 | |
| -1 | -763,643,407 |
Let's try dividing by 4:
763,643,407 ÷ 4 = 190,910,851.75
If the quotient is a whole number, then 4 and 190,910,851.75 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 | 763,643,407 | |
| -1 | 763,643,407 |
If you did it right, you will end up with this table:
| 1 | 37 | 43 | 89 | 1,591 | 3,293 | 3,827 | 5,393 | 141,599 | 199,541 | 231,899 | 479,977 | 8,580,263 | 17,759,149 | 20,639,011 | 763,643,407 |
| -1 | -37 | -43 | -89 | -1,591 | -3,293 | -3,827 | -5,393 | -141,599 | -199,541 | -231,899 | -479,977 | -8,580,263 | -17,759,149 | -20,639,011 | -763,643,407 |
Here are some more numbers to try:
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