Here we will show you how to count by 9639, discuss counting by 9639 patterns, and tell you why knowing how to count by 9639 matters. To start off, note that Count by 9639 means counting in 9639s, or count by nine thousand six hundred thirty-nines, and it is also called skip counting by 9639.
How to count by 9639
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 9639, we count 9639, 19278, 28917, 38556, and so on.
In other words, to count in intervals of 9639 or skip counting by 9639, we start with 9639 and then add 9639 to get the next number, and then continue adding 9639 to the previous number to keep counting by 9639, like this:
9639
9639 + 9639 = 19278
19278 + 9639 = 28917
28917 + 9639 = 38556
38556 + 9639 = 48195
...
You can of course skip count by 9639 forever, so it is impossible to make a list of all numbers, but below is a Count by 9639 Chart of the first 100 numbers to get you started.

Looking at the chart above, you will see that the first column has the first ten numbers you get when you skip count by 9639, the second column has the next ten numbers you get when you skip count by 9639, and so forth.
Count by 9639 Patterns
We organized the Skip Counting by 9639s Chart above in 10 rows and 10 columns so you can easily identify patterns.
Skip counting always creates patterns. Figuring out these patterns may help you if want to count by 9639, but don't have the Counting by 9639s Chart above. Obviously, one pattern with counting by 9639s is that the number increases by 9639.
Furthermore, if you look at each row above, each number in the row has the same last digit (ones place). That means that every tenth number has the same last digit.
If you look down the columns, you will see that the last digit (ones place) repeats itself in blocks of 10 over and over. The pattern of the last digit when you count by 9639 goes 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 and 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 and so on for as long as you count by 9639.
Why Count by 9639?
We think that understanding and learning about skip counting by 9639 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.
When you count by nine thousand six hundred thirty-nine, you are also creating a list of multiples of 9639 that you can use in math when you need the least common multiple. 9639 times n equals the nth multiple or skip count of 9639.
When you skip count by 9639, you are also creating a list of numbers that 9639 is divisible by. On top of that, skip counting by 9639 is the same as making the 9639 times table.
Skip Counting
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Count by 9640
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