A:
Positive:
1 x 153791355 x 307582717 x 90465529 x 53031585 x 180931145 x 106063289 x 53215367 x 41905493 x 311951445 x 106431835 x 83812465 x 6239
Negative:
-1 x -15379135-5 x -3075827-17 x -904655-29 x -530315-85 x -180931-145 x -106063-289 x -53215-367 x -41905-493 x -31195-1445 x -10643-1835 x -8381-2465 x -6239
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 15,379,135, 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 | 15,379,135 | |
| -1 | -15,379,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,379,135.
Example:
1 x 15,379,135 = 15,379,135
and
-1 x -15,379,135 = 15,379,135
Notice both answers equal 15,379,135
With that explanation out of the way, let's continue. Next, we take the number 15,379,135 and divide it by 2:
15,379,135 ÷ 2 = 7,689,567.5
If the quotient is a whole number, then 2 and 7,689,567.5 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 | 15,379,135 | |
| -1 | -15,379,135 |
Now, we try dividing 15,379,135 by 3:
15,379,135 ÷ 3 = 5,126,378.3333
If the quotient is a whole number, then 3 and 5,126,378.3333 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 | 15,379,135 | |
| -1 | -15,379,135 |
Let's try dividing by 4:
15,379,135 ÷ 4 = 3,844,783.75
If the quotient is a whole number, then 4 and 3,844,783.75 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 | 15,379,135 | |
| -1 | 15,379,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 289 | 367 | 493 | 1,445 | 1,835 | 2,465 | 6,239 | 8,381 | 10,643 | 31,195 | 41,905 | 53,215 | 106,063 | 180,931 | 530,315 | 904,655 | 3,075,827 | 15,379,135 |
| -1 | -5 | -17 | -29 | -85 | -145 | -289 | -367 | -493 | -1,445 | -1,835 | -2,465 | -6,239 | -8,381 | -10,643 | -31,195 | -41,905 | -53,215 | -106,063 | -180,931 | -530,315 | -904,655 | -3,075,827 | -15,379,135 |
Here are some more numbers to try:
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