A:
Positive:
1 x 10190028719 x 536317329 x 3513803173 x 589019551 x 1849371069 x 953233287 x 310015017 x 20311
Negative:
-1 x -101900287-19 x -5363173-29 x -3513803-173 x -589019-551 x -184937-1069 x -95323-3287 x -31001-5017 x -20311
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 101,900,287, 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 | 101,900,287 | |
| -1 | -101,900,287 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 101,900,287.
Example:
1 x 101,900,287 = 101,900,287
and
-1 x -101,900,287 = 101,900,287
Notice both answers equal 101,900,287
With that explanation out of the way, let's continue. Next, we take the number 101,900,287 and divide it by 2:
101,900,287 ÷ 2 = 50,950,143.5
If the quotient is a whole number, then 2 and 50,950,143.5 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 | 101,900,287 | |
| -1 | -101,900,287 |
Now, we try dividing 101,900,287 by 3:
101,900,287 ÷ 3 = 33,966,762.3333
If the quotient is a whole number, then 3 and 33,966,762.3333 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 | 101,900,287 | |
| -1 | -101,900,287 |
Let's try dividing by 4:
101,900,287 ÷ 4 = 25,475,071.75
If the quotient is a whole number, then 4 and 25,475,071.75 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 | 101,900,287 | |
| -1 | 101,900,287 |
If you did it right, you will end up with this table:
| 1 | 19 | 29 | 173 | 551 | 1,069 | 3,287 | 5,017 | 20,311 | 31,001 | 95,323 | 184,937 | 589,019 | 3,513,803 | 5,363,173 | 101,900,287 |
| -1 | -19 | -29 | -173 | -551 | -1,069 | -3,287 | -5,017 | -20,311 | -31,001 | -95,323 | -184,937 | -589,019 | -3,513,803 | -5,363,173 | -101,900,287 |
Here are some more numbers to try:
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