A:
Positive:
1 x 17245423917 x 10144367103 x 1674313149 x 1157411661 x 2608991751 x 984892533 x 6808311237 x 15347
Negative:
-1 x -172454239-17 x -10144367-103 x -1674313-149 x -1157411-661 x -260899-1751 x -98489-2533 x -68083-11237 x -15347
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 172,454,239, 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 | 172,454,239 | |
| -1 | -172,454,239 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,454,239.
Example:
1 x 172,454,239 = 172,454,239
and
-1 x -172,454,239 = 172,454,239
Notice both answers equal 172,454,239
With that explanation out of the way, let's continue. Next, we take the number 172,454,239 and divide it by 2:
172,454,239 ÷ 2 = 86,227,119.5
If the quotient is a whole number, then 2 and 86,227,119.5 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 | 172,454,239 | |
| -1 | -172,454,239 |
Now, we try dividing 172,454,239 by 3:
172,454,239 ÷ 3 = 57,484,746.3333
If the quotient is a whole number, then 3 and 57,484,746.3333 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 | 172,454,239 | |
| -1 | -172,454,239 |
Let's try dividing by 4:
172,454,239 ÷ 4 = 43,113,559.75
If the quotient is a whole number, then 4 and 43,113,559.75 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 | 172,454,239 | |
| -1 | 172,454,239 |
If you did it right, you will end up with this table:
| 1 | 17 | 103 | 149 | 661 | 1,751 | 2,533 | 11,237 | 15,347 | 68,083 | 98,489 | 260,899 | 1,157,411 | 1,674,313 | 10,144,367 | 172,454,239 |
| -1 | -17 | -103 | -149 | -661 | -1,751 | -2,533 | -11,237 | -15,347 | -68,083 | -98,489 | -260,899 | -1,157,411 | -1,674,313 | -10,144,367 | -172,454,239 |
Here are some more numbers to try:
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