Q: What are the factor combinations of the number 1,616,400?

 A:
Positive:   1 x 16164002 x 8082003 x 5388004 x 4041005 x 3232806 x 2694008 x 2020509 x 17960010 x 16164012 x 13470015 x 10776016 x 10102518 x 8980020 x 8082024 x 6735025 x 6465630 x 5388036 x 4490040 x 4041045 x 3592048 x 3367550 x 3232860 x 2694072 x 2245075 x 2155280 x 2020590 x 17960100 x 16164120 x 13470144 x 11225150 x 10776180 x 8980200 x 8082225 x 7184240 x 6735300 x 5388360 x 4490400 x 4041449 x 3600450 x 3592600 x 2694720 x 2245898 x 1800900 x 17961200 x 1347
Negative: -1 x -1616400-2 x -808200-3 x -538800-4 x -404100-5 x -323280-6 x -269400-8 x -202050-9 x -179600-10 x -161640-12 x -134700-15 x -107760-16 x -101025-18 x -89800-20 x -80820-24 x -67350-25 x -64656-30 x -53880-36 x -44900-40 x -40410-45 x -35920-48 x -33675-50 x -32328-60 x -26940-72 x -22450-75 x -21552-80 x -20205-90 x -17960-100 x -16164-120 x -13470-144 x -11225-150 x -10776-180 x -8980-200 x -8082-225 x -7184-240 x -6735-300 x -5388-360 x -4490-400 x -4041-449 x -3600-450 x -3592-600 x -2694-720 x -2245-898 x -1800-900 x -1796-1200 x -1347


How do I find the factor combinations of the number 1,616,400?

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 1,616,400, 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 1,616,400
-1 -1,616,400

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 1,616,400.

Example:
1 x 1,616,400 = 1,616,400
and
-1 x -1,616,400 = 1,616,400
Notice both answers equal 1,616,400

With that explanation out of the way, let's continue. Next, we take the number 1,616,400 and divide it by 2:

1,616,400 ÷ 2 = 808,200

If the quotient is a whole number, then 2 and 808,200 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 2 808,200 1,616,400
-1 -2 -808,200 -1,616,400

Now, we try dividing 1,616,400 by 3:

1,616,400 ÷ 3 = 538,800

If the quotient is a whole number, then 3 and 538,800 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 3 538,800 808,200 1,616,400
-1 -2 -3 -538,800 -808,200 -1,616,400

Let's try dividing by 4:

1,616,400 ÷ 4 = 404,100

If the quotient is a whole number, then 4 and 404,100 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 4 404,100 538,800 808,200 1,616,400
-1 -2 -3 -4 -404,100 -538,800 -808,200 1,616,400
Keep dividing by the next highest number until you cannot divide anymore.

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

12345689101215161820242530364045485060727580901001201441501802002252403003604004494506007208989001,2001,3471,7961,8002,2452,6943,5923,6004,0414,4905,3886,7357,1848,0828,98010,77611,22513,47016,16417,96020,20521,55222,45026,94032,32833,67535,92040,41044,90053,88064,65667,35080,82089,800101,025107,760134,700161,640179,600202,050269,400323,280404,100538,800808,2001,616,400
-1-2-3-4-5-6-8-9-10-12-15-16-18-20-24-25-30-36-40-45-48-50-60-72-75-80-90-100-120-144-150-180-200-225-240-300-360-400-449-450-600-720-898-900-1,200-1,347-1,796-1,800-2,245-2,694-3,592-3,600-4,041-4,490-5,388-6,735-7,184-8,082-8,980-10,776-11,225-13,470-16,164-17,960-20,205-21,552-22,450-26,940-32,328-33,675-35,920-40,410-44,900-53,880-64,656-67,350-80,820-89,800-101,025-107,760-134,700-161,640-179,600-202,050-269,400-323,280-404,100-538,800-808,200-1,616,400

More Examples

Here are some more numbers to try:

1,616,3981,616,3991,616,4011,616,402
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