A:
Positive:
1 x 1451553537 x 2073647929 x 5005357149 x 974197203 x 7150511043 x 1391714321 x 335934799 x 30247
Negative:
-1 x -145155353-7 x -20736479-29 x -5005357-149 x -974197-203 x -715051-1043 x -139171-4321 x -33593-4799 x -30247
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 145,155,353, 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 | 145,155,353 | |
| -1 | -145,155,353 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,155,353.
Example:
1 x 145,155,353 = 145,155,353
and
-1 x -145,155,353 = 145,155,353
Notice both answers equal 145,155,353
With that explanation out of the way, let's continue. Next, we take the number 145,155,353 and divide it by 2:
145,155,353 ÷ 2 = 72,577,676.5
If the quotient is a whole number, then 2 and 72,577,676.5 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 | 145,155,353 | |
| -1 | -145,155,353 |
Now, we try dividing 145,155,353 by 3:
145,155,353 ÷ 3 = 48,385,117.6667
If the quotient is a whole number, then 3 and 48,385,117.6667 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 | 145,155,353 | |
| -1 | -145,155,353 |
Let's try dividing by 4:
145,155,353 ÷ 4 = 36,288,838.25
If the quotient is a whole number, then 4 and 36,288,838.25 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 | 145,155,353 | |
| -1 | 145,155,353 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 149 | 203 | 1,043 | 4,321 | 4,799 | 30,247 | 33,593 | 139,171 | 715,051 | 974,197 | 5,005,357 | 20,736,479 | 145,155,353 |
| -1 | -7 | -29 | -149 | -203 | -1,043 | -4,321 | -4,799 | -30,247 | -33,593 | -139,171 | -715,051 | -974,197 | -5,005,357 | -20,736,479 | -145,155,353 |
Here are some more numbers to try:
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