A:
Positive:
1 x 1450323497 x 2071890711 x 1318475977 x 1883537127 x 1141987889 x 1631411397 x 1038179779 x 14831
Negative:
-1 x -145032349-7 x -20718907-11 x -13184759-77 x -1883537-127 x -1141987-889 x -163141-1397 x -103817-9779 x -14831
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 145,032,349, 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 | 145,032,349 | |
| -1 | -145,032,349 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,032,349.
Example:
1 x 145,032,349 = 145,032,349
and
-1 x -145,032,349 = 145,032,349
Notice both answers equal 145,032,349
With that explanation out of the way, let's continue. Next, we take the number 145,032,349 and divide it by 2:
145,032,349 ÷ 2 = 72,516,174.5
If the quotient is a whole number, then 2 and 72,516,174.5 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 | 145,032,349 | |
| -1 | -145,032,349 |
Now, we try dividing 145,032,349 by 3:
145,032,349 ÷ 3 = 48,344,116.3333
If the quotient is a whole number, then 3 and 48,344,116.3333 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 | 145,032,349 | |
| -1 | -145,032,349 |
Let's try dividing by 4:
145,032,349 ÷ 4 = 36,258,087.25
If the quotient is a whole number, then 4 and 36,258,087.25 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 | 145,032,349 | |
| -1 | 145,032,349 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 127 | 889 | 1,397 | 9,779 | 14,831 | 103,817 | 163,141 | 1,141,987 | 1,883,537 | 13,184,759 | 20,718,907 | 145,032,349 |
| -1 | -7 | -11 | -77 | -127 | -889 | -1,397 | -9,779 | -14,831 | -103,817 | -163,141 | -1,141,987 | -1,883,537 | -13,184,759 | -20,718,907 | -145,032,349 |
Here are some more numbers to try:
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