A:
Positive:
1 x 1541454537 x 2202077911 x 1401322377 x 2001889677 x 2276892957 x 521294739 x 325277447 x 20699
Negative:
-1 x -154145453-7 x -22020779-11 x -14013223-77 x -2001889-677 x -227689-2957 x -52129-4739 x -32527-7447 x -20699
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 154,145,453, 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 | 154,145,453 | |
| -1 | -154,145,453 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,145,453.
Example:
1 x 154,145,453 = 154,145,453
and
-1 x -154,145,453 = 154,145,453
Notice both answers equal 154,145,453
With that explanation out of the way, let's continue. Next, we take the number 154,145,453 and divide it by 2:
154,145,453 ÷ 2 = 77,072,726.5
If the quotient is a whole number, then 2 and 77,072,726.5 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 | 154,145,453 | |
| -1 | -154,145,453 |
Now, we try dividing 154,145,453 by 3:
154,145,453 ÷ 3 = 51,381,817.6667
If the quotient is a whole number, then 3 and 51,381,817.6667 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 | 154,145,453 | |
| -1 | -154,145,453 |
Let's try dividing by 4:
154,145,453 ÷ 4 = 38,536,363.25
If the quotient is a whole number, then 4 and 38,536,363.25 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 | 154,145,453 | |
| -1 | 154,145,453 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 677 | 2,957 | 4,739 | 7,447 | 20,699 | 32,527 | 52,129 | 227,689 | 2,001,889 | 14,013,223 | 22,020,779 | 154,145,453 |
| -1 | -7 | -11 | -77 | -677 | -2,957 | -4,739 | -7,447 | -20,699 | -32,527 | -52,129 | -227,689 | -2,001,889 | -14,013,223 | -22,020,779 | -154,145,453 |
Here are some more numbers to try:
Try the factor calculator