A:
Positive:
1 x 1580018517 x 2257169353 x 2981167131 x 1206121371 x 425881917 x 1723033251 x 486016943 x 22757
Negative:
-1 x -158001851-7 x -22571693-53 x -2981167-131 x -1206121-371 x -425881-917 x -172303-3251 x -48601-6943 x -22757
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 158,001,851, 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 | 158,001,851 | |
| -1 | -158,001,851 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 158,001,851.
Example:
1 x 158,001,851 = 158,001,851
and
-1 x -158,001,851 = 158,001,851
Notice both answers equal 158,001,851
With that explanation out of the way, let's continue. Next, we take the number 158,001,851 and divide it by 2:
158,001,851 ÷ 2 = 79,000,925.5
If the quotient is a whole number, then 2 and 79,000,925.5 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 | 158,001,851 | |
| -1 | -158,001,851 |
Now, we try dividing 158,001,851 by 3:
158,001,851 ÷ 3 = 52,667,283.6667
If the quotient is a whole number, then 3 and 52,667,283.6667 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 | 158,001,851 | |
| -1 | -158,001,851 |
Let's try dividing by 4:
158,001,851 ÷ 4 = 39,500,462.75
If the quotient is a whole number, then 4 and 39,500,462.75 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 | 158,001,851 | |
| -1 | 158,001,851 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 131 | 371 | 917 | 3,251 | 6,943 | 22,757 | 48,601 | 172,303 | 425,881 | 1,206,121 | 2,981,167 | 22,571,693 | 158,001,851 |
| -1 | -7 | -53 | -131 | -371 | -917 | -3,251 | -6,943 | -22,757 | -48,601 | -172,303 | -425,881 | -1,206,121 | -2,981,167 | -22,571,693 | -158,001,851 |
Here are some more numbers to try:
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