Q: What are the factor combinations of the number 31,724,532?

 A:
Positive:   1 x 317245322 x 158622663 x 105748444 x 79311336 x 52874227 x 45320769 x 352494812 x 264371114 x 226603818 x 176247421 x 151069228 x 113301931 x 102337236 x 88123742 x 75534662 x 51168663 x 50356484 x 37767393 x 341124124 x 255843126 x 251782131 x 242172186 x 170562217 x 146196252 x 125891262 x 121086279 x 113708372 x 85281393 x 80724434 x 73098524 x 60543558 x 56854651 x 48732786 x 40362868 x 36549917 x 34596961 x 330121116 x 284271179 x 269081302 x 243661572 x 201811834 x 172981922 x 165061953 x 162442358 x 134542604 x 121832751 x 115322883 x 110043668 x 86493844 x 82533906 x 81224061 x 78124716 x 67275502 x 5766
Negative: -1 x -31724532-2 x -15862266-3 x -10574844-4 x -7931133-6 x -5287422-7 x -4532076-9 x -3524948-12 x -2643711-14 x -2266038-18 x -1762474-21 x -1510692-28 x -1133019-31 x -1023372-36 x -881237-42 x -755346-62 x -511686-63 x -503564-84 x -377673-93 x -341124-124 x -255843-126 x -251782-131 x -242172-186 x -170562-217 x -146196-252 x -125891-262 x -121086-279 x -113708-372 x -85281-393 x -80724-434 x -73098-524 x -60543-558 x -56854-651 x -48732-786 x -40362-868 x -36549-917 x -34596-961 x -33012-1116 x -28427-1179 x -26908-1302 x -24366-1572 x -20181-1834 x -17298-1922 x -16506-1953 x -16244-2358 x -13454-2604 x -12183-2751 x -11532-2883 x -11004-3668 x -8649-3844 x -8253-3906 x -8122-4061 x -7812-4716 x -6727-5502 x -5766


How do I find the factor combinations of the number 31,724,532?

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 31,724,532, 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 31,724,532
-1 -31,724,532

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 31,724,532.

Example:
1 x 31,724,532 = 31,724,532
and
-1 x -31,724,532 = 31,724,532
Notice both answers equal 31,724,532

With that explanation out of the way, let's continue. Next, we take the number 31,724,532 and divide it by 2:

31,724,532 ÷ 2 = 15,862,266

If the quotient is a whole number, then 2 and 15,862,266 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 15,862,266 31,724,532
-1 -2 -15,862,266 -31,724,532

Now, we try dividing 31,724,532 by 3:

31,724,532 ÷ 3 = 10,574,844

If the quotient is a whole number, then 3 and 10,574,844 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 3 10,574,844 15,862,266 31,724,532
-1 -2 -3 -10,574,844 -15,862,266 -31,724,532

Let's try dividing by 4:

31,724,532 ÷ 4 = 7,931,133

If the quotient is a whole number, then 4 and 7,931,133 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 3 4 7,931,133 10,574,844 15,862,266 31,724,532
-1 -2 -3 -4 -7,931,133 -10,574,844 -15,862,266 31,724,532
Keep dividing by the next highest number until you cannot divide anymore.

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

12346791214182128313642626384931241261311862172522622793723934345245586517868689179611,1161,1791,3021,5721,8341,9221,9532,3582,6042,7512,8833,6683,8443,9064,0614,7165,5025,7666,7277,8128,1228,2538,64911,00411,53212,18313,45416,24416,50617,29820,18124,36626,90828,42733,01234,59636,54940,36248,73256,85460,54373,09880,72485,281113,708121,086125,891146,196170,562242,172251,782255,843341,124377,673503,564511,686755,346881,2371,023,3721,133,0191,510,6921,762,4742,266,0382,643,7113,524,9484,532,0765,287,4227,931,13310,574,84415,862,26631,724,532
-1-2-3-4-6-7-9-12-14-18-21-28-31-36-42-62-63-84-93-124-126-131-186-217-252-262-279-372-393-434-524-558-651-786-868-917-961-1,116-1,179-1,302-1,572-1,834-1,922-1,953-2,358-2,604-2,751-2,883-3,668-3,844-3,906-4,061-4,716-5,502-5,766-6,727-7,812-8,122-8,253-8,649-11,004-11,532-12,183-13,454-16,244-16,506-17,298-20,181-24,366-26,908-28,427-33,012-34,596-36,549-40,362-48,732-56,854-60,543-73,098-80,724-85,281-113,708-121,086-125,891-146,196-170,562-242,172-251,782-255,843-341,124-377,673-503,564-511,686-755,346-881,237-1,023,372-1,133,019-1,510,692-1,762,474-2,266,038-2,643,711-3,524,948-4,532,076-5,287,422-7,931,133-10,574,844-15,862,266-31,724,532

More Examples

Here are some more numbers to try:

31,724,53031,724,53131,724,53331,724,534
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