A:
Positive:
1 x 14715420723 x 639800929 x 507428341 x 3589127667 x 220621943 x 1560491189 x 1237635381 x 27347
Negative:
-1 x -147154207-23 x -6398009-29 x -5074283-41 x -3589127-667 x -220621-943 x -156049-1189 x -123763-5381 x -27347
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 147,154,207, 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 | 147,154,207 | |
| -1 | -147,154,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 147,154,207.
Example:
1 x 147,154,207 = 147,154,207
and
-1 x -147,154,207 = 147,154,207
Notice both answers equal 147,154,207
With that explanation out of the way, let's continue. Next, we take the number 147,154,207 and divide it by 2:
147,154,207 ÷ 2 = 73,577,103.5
If the quotient is a whole number, then 2 and 73,577,103.5 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 | 147,154,207 | |
| -1 | -147,154,207 |
Now, we try dividing 147,154,207 by 3:
147,154,207 ÷ 3 = 49,051,402.3333
If the quotient is a whole number, then 3 and 49,051,402.3333 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 | 147,154,207 | |
| -1 | -147,154,207 |
Let's try dividing by 4:
147,154,207 ÷ 4 = 36,788,551.75
If the quotient is a whole number, then 4 and 36,788,551.75 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 | 147,154,207 | |
| -1 | 147,154,207 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 41 | 667 | 943 | 1,189 | 5,381 | 27,347 | 123,763 | 156,049 | 220,621 | 3,589,127 | 5,074,283 | 6,398,009 | 147,154,207 |
| -1 | -23 | -29 | -41 | -667 | -943 | -1,189 | -5,381 | -27,347 | -123,763 | -156,049 | -220,621 | -3,589,127 | -5,074,283 | -6,398,009 | -147,154,207 |
Here are some more numbers to try:
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