A:
Positive:
1 x 1451723655 x 2903447313 x 1116710565 x 2233421563 x 2578552815 x 515713967 x 365957319 x 19835
Negative:
-1 x -145172365-5 x -29034473-13 x -11167105-65 x -2233421-563 x -257855-2815 x -51571-3967 x -36595-7319 x -19835
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 145,172,365, 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 | 145,172,365 | |
| -1 | -145,172,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,172,365.
Example:
1 x 145,172,365 = 145,172,365
and
-1 x -145,172,365 = 145,172,365
Notice both answers equal 145,172,365
With that explanation out of the way, let's continue. Next, we take the number 145,172,365 and divide it by 2:
145,172,365 ÷ 2 = 72,586,182.5
If the quotient is a whole number, then 2 and 72,586,182.5 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 | 145,172,365 | |
| -1 | -145,172,365 |
Now, we try dividing 145,172,365 by 3:
145,172,365 ÷ 3 = 48,390,788.3333
If the quotient is a whole number, then 3 and 48,390,788.3333 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 | 145,172,365 | |
| -1 | -145,172,365 |
Let's try dividing by 4:
145,172,365 ÷ 4 = 36,293,091.25
If the quotient is a whole number, then 4 and 36,293,091.25 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 | 145,172,365 | |
| -1 | 145,172,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 563 | 2,815 | 3,967 | 7,319 | 19,835 | 36,595 | 51,571 | 257,855 | 2,233,421 | 11,167,105 | 29,034,473 | 145,172,365 |
| -1 | -5 | -13 | -65 | -563 | -2,815 | -3,967 | -7,319 | -19,835 | -36,595 | -51,571 | -257,855 | -2,233,421 | -11,167,105 | -29,034,473 | -145,172,365 |
Here are some more numbers to try:
Try the factor calculator