A:
Positive:
1 x 1524502217 x 2177860311 x 1385911149 x 311122977 x 1979873113 x 1349117539 x 282839791 x 1927311243 x 1226472503 x 609075537 x 275338701 x 17521
Negative:
-1 x -152450221-7 x -21778603-11 x -13859111-49 x -3111229-77 x -1979873-113 x -1349117-539 x -282839-791 x -192731-1243 x -122647-2503 x -60907-5537 x -27533-8701 x -17521
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 152,450,221, 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 | 152,450,221 | |
| -1 | -152,450,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 152,450,221.
Example:
1 x 152,450,221 = 152,450,221
and
-1 x -152,450,221 = 152,450,221
Notice both answers equal 152,450,221
With that explanation out of the way, let's continue. Next, we take the number 152,450,221 and divide it by 2:
152,450,221 ÷ 2 = 76,225,110.5
If the quotient is a whole number, then 2 and 76,225,110.5 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 | 152,450,221 | |
| -1 | -152,450,221 |
Now, we try dividing 152,450,221 by 3:
152,450,221 ÷ 3 = 50,816,740.3333
If the quotient is a whole number, then 3 and 50,816,740.3333 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 | 152,450,221 | |
| -1 | -152,450,221 |
Let's try dividing by 4:
152,450,221 ÷ 4 = 38,112,555.25
If the quotient is a whole number, then 4 and 38,112,555.25 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 | 152,450,221 | |
| -1 | 152,450,221 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 113 | 539 | 791 | 1,243 | 2,503 | 5,537 | 8,701 | 17,521 | 27,533 | 60,907 | 122,647 | 192,731 | 282,839 | 1,349,117 | 1,979,873 | 3,111,229 | 13,859,111 | 21,778,603 | 152,450,221 |
| -1 | -7 | -11 | -49 | -77 | -113 | -539 | -791 | -1,243 | -2,503 | -5,537 | -8,701 | -17,521 | -27,533 | -60,907 | -122,647 | -192,731 | -282,839 | -1,349,117 | -1,979,873 | -3,111,229 | -13,859,111 | -21,778,603 | -152,450,221 |
Here are some more numbers to try:
Try the factor calculator