Q: What are the factor combinations of the number 100,423,520?

 A:
Positive:   1 x 1004235202 x 502117604 x 251058805 x 200847048 x 1255294010 x 1004235216 x 627647020 x 502117623 x 436624029 x 346288032 x 313823540 x 251058846 x 218312058 x 173144080 x 125529492 x 1091560115 x 873248116 x 865720145 x 692576160 x 627647184 x 545780230 x 436624232 x 432860290 x 346288368 x 272890460 x 218312464 x 216430580 x 173144667 x 150560736 x 136445920 x 109156928 x 108215941 x 1067201160 x 865721334 x 752801840 x 545781882 x 533602320 x 432862668 x 376403335 x 301123680 x 272893764 x 266804640 x 216434705 x 213445336 x 188206670 x 150567528 x 133409410 x 10672
Negative: -1 x -100423520-2 x -50211760-4 x -25105880-5 x -20084704-8 x -12552940-10 x -10042352-16 x -6276470-20 x -5021176-23 x -4366240-29 x -3462880-32 x -3138235-40 x -2510588-46 x -2183120-58 x -1731440-80 x -1255294-92 x -1091560-115 x -873248-116 x -865720-145 x -692576-160 x -627647-184 x -545780-230 x -436624-232 x -432860-290 x -346288-368 x -272890-460 x -218312-464 x -216430-580 x -173144-667 x -150560-736 x -136445-920 x -109156-928 x -108215-941 x -106720-1160 x -86572-1334 x -75280-1840 x -54578-1882 x -53360-2320 x -43286-2668 x -37640-3335 x -30112-3680 x -27289-3764 x -26680-4640 x -21643-4705 x -21344-5336 x -18820-6670 x -15056-7528 x -13340-9410 x -10672


How do I find the factor combinations of the number 100,423,520?

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 100,423,520, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

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.

1 100,423,520
-1 -100,423,520

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,423,520.

Example:
1 x 100,423,520 = 100,423,520
and
-1 x -100,423,520 = 100,423,520
Notice both answers equal 100,423,520

With that explanation out of the way, let's continue. Next, we take the number 100,423,520 and divide it by 2:

100,423,520 ÷ 2 = 50,211,760

If the quotient is a whole number, then 2 and 50,211,760 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 50,211,760 100,423,520
-1 -2 -50,211,760 -100,423,520

Now, we try dividing 100,423,520 by 3:

100,423,520 ÷ 3 = 33,474,506.6667

If the quotient is a whole number, then 3 and 33,474,506.6667 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 2 50,211,760 100,423,520
-1 -2 -50,211,760 -100,423,520

Let's try dividing by 4:

100,423,520 ÷ 4 = 25,105,880

If the quotient is a whole number, then 4 and 25,105,880 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 25,105,880 50,211,760 100,423,520
-1 -2 -4 -25,105,880 -50,211,760 100,423,520
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

1245810162023293240465880921151161451601842302322903684604645806677369209289411,1601,3341,8401,8822,3202,6683,3353,6803,7644,6404,7055,3366,6707,5289,41010,67213,34015,05618,82021,34421,64326,68027,28930,11237,64043,28653,36054,57875,28086,572106,720108,215109,156136,445150,560173,144216,430218,312272,890346,288432,860436,624545,780627,647692,576865,720873,2481,091,5601,255,2941,731,4402,183,1202,510,5883,138,2353,462,8804,366,2405,021,1766,276,47010,042,35212,552,94020,084,70425,105,88050,211,760100,423,520
-1-2-4-5-8-10-16-20-23-29-32-40-46-58-80-92-115-116-145-160-184-230-232-290-368-460-464-580-667-736-920-928-941-1,160-1,334-1,840-1,882-2,320-2,668-3,335-3,680-3,764-4,640-4,705-5,336-6,670-7,528-9,410-10,672-13,340-15,056-18,820-21,344-21,643-26,680-27,289-30,112-37,640-43,286-53,360-54,578-75,280-86,572-106,720-108,215-109,156-136,445-150,560-173,144-216,430-218,312-272,890-346,288-432,860-436,624-545,780-627,647-692,576-865,720-873,248-1,091,560-1,255,294-1,731,440-2,183,120-2,510,588-3,138,235-3,462,880-4,366,240-5,021,176-6,276,470-10,042,352-12,552,940-20,084,704-25,105,880-50,211,760-100,423,520

More Examples

Here are some more numbers to try:

100,423,518100,423,519100,423,521100,423,522
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