A:
Positive:
1 x 1535425017 x 2193464329 x 5294569193 x 795557203 x 7563671351 x 1136513919 x 391795597 x 27433
Negative:
-1 x -153542501-7 x -21934643-29 x -5294569-193 x -795557-203 x -756367-1351 x -113651-3919 x -39179-5597 x -27433
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 153,542,501, 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 | 153,542,501 | |
| -1 | -153,542,501 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,542,501.
Example:
1 x 153,542,501 = 153,542,501
and
-1 x -153,542,501 = 153,542,501
Notice both answers equal 153,542,501
With that explanation out of the way, let's continue. Next, we take the number 153,542,501 and divide it by 2:
153,542,501 ÷ 2 = 76,771,250.5
If the quotient is a whole number, then 2 and 76,771,250.5 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 | 153,542,501 | |
| -1 | -153,542,501 |
Now, we try dividing 153,542,501 by 3:
153,542,501 ÷ 3 = 51,180,833.6667
If the quotient is a whole number, then 3 and 51,180,833.6667 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 | 153,542,501 | |
| -1 | -153,542,501 |
Let's try dividing by 4:
153,542,501 ÷ 4 = 38,385,625.25
If the quotient is a whole number, then 4 and 38,385,625.25 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 | 153,542,501 | |
| -1 | 153,542,501 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 193 | 203 | 1,351 | 3,919 | 5,597 | 27,433 | 39,179 | 113,651 | 756,367 | 795,557 | 5,294,569 | 21,934,643 | 153,542,501 |
| -1 | -7 | -29 | -193 | -203 | -1,351 | -3,919 | -5,597 | -27,433 | -39,179 | -113,651 | -756,367 | -795,557 | -5,294,569 | -21,934,643 | -153,542,501 |
Here are some more numbers to try:
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