A:
Positive:
1 x 289773555 x 579547111 x 263430523 x 125988555 x 526861115 x 251977253 x 1145351265 x 22907
Negative:
-1 x -28977355-5 x -5795471-11 x -2634305-23 x -1259885-55 x -526861-115 x -251977-253 x -114535-1265 x -22907
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 28,977,355, 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 | 28,977,355 | |
| -1 | -28,977,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,977,355.
Example:
1 x 28,977,355 = 28,977,355
and
-1 x -28,977,355 = 28,977,355
Notice both answers equal 28,977,355
With that explanation out of the way, let's continue. Next, we take the number 28,977,355 and divide it by 2:
28,977,355 ÷ 2 = 14,488,677.5
If the quotient is a whole number, then 2 and 14,488,677.5 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 | 28,977,355 | |
| -1 | -28,977,355 |
Now, we try dividing 28,977,355 by 3:
28,977,355 ÷ 3 = 9,659,118.3333
If the quotient is a whole number, then 3 and 9,659,118.3333 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 | 28,977,355 | |
| -1 | -28,977,355 |
Let's try dividing by 4:
28,977,355 ÷ 4 = 7,244,338.75
If the quotient is a whole number, then 4 and 7,244,338.75 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 | 28,977,355 | |
| -1 | 28,977,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 55 | 115 | 253 | 1,265 | 22,907 | 114,535 | 251,977 | 526,861 | 1,259,885 | 2,634,305 | 5,795,471 | 28,977,355 |
| -1 | -5 | -11 | -23 | -55 | -115 | -253 | -1,265 | -22,907 | -114,535 | -251,977 | -526,861 | -1,259,885 | -2,634,305 | -5,795,471 | -28,977,355 |
Here are some more numbers to try:
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