A:
Positive:
1 x 1552570397 x 2217957717 x 913276729 x 535369149 x 3168511119 x 1304681203 x 764813493 x 314923833 x 1863831421 x 1092593451 x 449896427 x 24157
Negative:
-1 x -155257039-7 x -22179577-17 x -9132767-29 x -5353691-49 x -3168511-119 x -1304681-203 x -764813-493 x -314923-833 x -186383-1421 x -109259-3451 x -44989-6427 x -24157
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 155,257,039, 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 | 155,257,039 | |
| -1 | -155,257,039 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,257,039.
Example:
1 x 155,257,039 = 155,257,039
and
-1 x -155,257,039 = 155,257,039
Notice both answers equal 155,257,039
With that explanation out of the way, let's continue. Next, we take the number 155,257,039 and divide it by 2:
155,257,039 ÷ 2 = 77,628,519.5
If the quotient is a whole number, then 2 and 77,628,519.5 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 | 155,257,039 | |
| -1 | -155,257,039 |
Now, we try dividing 155,257,039 by 3:
155,257,039 ÷ 3 = 51,752,346.3333
If the quotient is a whole number, then 3 and 51,752,346.3333 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 | 155,257,039 | |
| -1 | -155,257,039 |
Let's try dividing by 4:
155,257,039 ÷ 4 = 38,814,259.75
If the quotient is a whole number, then 4 and 38,814,259.75 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 | 155,257,039 | |
| -1 | 155,257,039 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 29 | 49 | 119 | 203 | 493 | 833 | 1,421 | 3,451 | 6,427 | 24,157 | 44,989 | 109,259 | 186,383 | 314,923 | 764,813 | 1,304,681 | 3,168,511 | 5,353,691 | 9,132,767 | 22,179,577 | 155,257,039 |
| -1 | -7 | -17 | -29 | -49 | -119 | -203 | -493 | -833 | -1,421 | -3,451 | -6,427 | -24,157 | -44,989 | -109,259 | -186,383 | -314,923 | -764,813 | -1,304,681 | -3,168,511 | -5,353,691 | -9,132,767 | -22,179,577 | -155,257,039 |
Here are some more numbers to try:
Try the factor calculator