A:
Positive:
1 x 15530352123 x 675232731 x 500979167 x 2317963713 x 2178171541 x 1007812077 x 747733251 x 47771
Negative:
-1 x -155303521-23 x -6752327-31 x -5009791-67 x -2317963-713 x -217817-1541 x -100781-2077 x -74773-3251 x -47771
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 155,303,521, 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 | 155,303,521 | |
| -1 | -155,303,521 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,303,521.
Example:
1 x 155,303,521 = 155,303,521
and
-1 x -155,303,521 = 155,303,521
Notice both answers equal 155,303,521
With that explanation out of the way, let's continue. Next, we take the number 155,303,521 and divide it by 2:
155,303,521 ÷ 2 = 77,651,760.5
If the quotient is a whole number, then 2 and 77,651,760.5 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 | 155,303,521 | |
| -1 | -155,303,521 |
Now, we try dividing 155,303,521 by 3:
155,303,521 ÷ 3 = 51,767,840.3333
If the quotient is a whole number, then 3 and 51,767,840.3333 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 | 155,303,521 | |
| -1 | -155,303,521 |
Let's try dividing by 4:
155,303,521 ÷ 4 = 38,825,880.25
If the quotient is a whole number, then 4 and 38,825,880.25 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 | 155,303,521 | |
| -1 | 155,303,521 |
If you did it right, you will end up with this table:
| 1 | 23 | 31 | 67 | 713 | 1,541 | 2,077 | 3,251 | 47,771 | 74,773 | 100,781 | 217,817 | 2,317,963 | 5,009,791 | 6,752,327 | 155,303,521 |
| -1 | -23 | -31 | -67 | -713 | -1,541 | -2,077 | -3,251 | -47,771 | -74,773 | -100,781 | -217,817 | -2,317,963 | -5,009,791 | -6,752,327 | -155,303,521 |
Here are some more numbers to try:
Try the factor calculator