A:
Positive:
1 x 15460564911 x 1405505931 x 498727967 x 2307547101 x 1530749341 x 453389737 x 2097771111 x 1391592077 x 744373131 x 493794489 x 344416767 x 22847
Negative:
-1 x -154605649-11 x -14055059-31 x -4987279-67 x -2307547-101 x -1530749-341 x -453389-737 x -209777-1111 x -139159-2077 x -74437-3131 x -49379-4489 x -34441-6767 x -22847
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 154,605,649, 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 | 154,605,649 | |
| -1 | -154,605,649 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,605,649.
Example:
1 x 154,605,649 = 154,605,649
and
-1 x -154,605,649 = 154,605,649
Notice both answers equal 154,605,649
With that explanation out of the way, let's continue. Next, we take the number 154,605,649 and divide it by 2:
154,605,649 ÷ 2 = 77,302,824.5
If the quotient is a whole number, then 2 and 77,302,824.5 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 | 154,605,649 | |
| -1 | -154,605,649 |
Now, we try dividing 154,605,649 by 3:
154,605,649 ÷ 3 = 51,535,216.3333
If the quotient is a whole number, then 3 and 51,535,216.3333 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 | 154,605,649 | |
| -1 | -154,605,649 |
Let's try dividing by 4:
154,605,649 ÷ 4 = 38,651,412.25
If the quotient is a whole number, then 4 and 38,651,412.25 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 | 154,605,649 | |
| -1 | 154,605,649 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 67 | 101 | 341 | 737 | 1,111 | 2,077 | 3,131 | 4,489 | 6,767 | 22,847 | 34,441 | 49,379 | 74,437 | 139,159 | 209,777 | 453,389 | 1,530,749 | 2,307,547 | 4,987,279 | 14,055,059 | 154,605,649 |
| -1 | -11 | -31 | -67 | -101 | -341 | -737 | -1,111 | -2,077 | -3,131 | -4,489 | -6,767 | -22,847 | -34,441 | -49,379 | -74,437 | -139,159 | -209,777 | -453,389 | -1,530,749 | -2,307,547 | -4,987,279 | -14,055,059 | -154,605,649 |
Here are some more numbers to try:
Try the factor calculator