A:
Positive:
1 x 72215536319 x 38008177163 x 4430401251 x 2877113929 x 7773473097 x 2331794769 x 15142717651 x 40913
Negative:
-1 x -722155363-19 x -38008177-163 x -4430401-251 x -2877113-929 x -777347-3097 x -233179-4769 x -151427-17651 x -40913
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 722,155,363, 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 | 722,155,363 | |
| -1 | -722,155,363 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 722,155,363.
Example:
1 x 722,155,363 = 722,155,363
and
-1 x -722,155,363 = 722,155,363
Notice both answers equal 722,155,363
With that explanation out of the way, let's continue. Next, we take the number 722,155,363 and divide it by 2:
722,155,363 ÷ 2 = 361,077,681.5
If the quotient is a whole number, then 2 and 361,077,681.5 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 | 722,155,363 | |
| -1 | -722,155,363 |
Now, we try dividing 722,155,363 by 3:
722,155,363 ÷ 3 = 240,718,454.3333
If the quotient is a whole number, then 3 and 240,718,454.3333 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 | 722,155,363 | |
| -1 | -722,155,363 |
Let's try dividing by 4:
722,155,363 ÷ 4 = 180,538,840.75
If the quotient is a whole number, then 4 and 180,538,840.75 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 | 722,155,363 | |
| -1 | 722,155,363 |
If you did it right, you will end up with this table:
| 1 | 19 | 163 | 251 | 929 | 3,097 | 4,769 | 17,651 | 40,913 | 151,427 | 233,179 | 777,347 | 2,877,113 | 4,430,401 | 38,008,177 | 722,155,363 |
| -1 | -19 | -163 | -251 | -929 | -3,097 | -4,769 | -17,651 | -40,913 | -151,427 | -233,179 | -777,347 | -2,877,113 | -4,430,401 | -38,008,177 | -722,155,363 |
Here are some more numbers to try:
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