Count by 6421 (Skip Counting by 6421s)

Count by 6421

Here we will show you how to count by 6421, discuss counting by 6421 patterns, and tell you why knowing how to count by 6421 matters. To start off, note that Count by 6421 means counting in 6421s, or count by six thousand four hundred twenty-ones, and it is also called skip counting by 6421.

How to count by 6421
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 6421, we count 6421, 12842, 19263, 25684, and so on.

In other words, to count in intervals of 6421 or skip counting by 6421, we start with 6421 and then add 6421 to get the next number, and then continue adding 6421 to the previous number to keep counting by 6421, like this:

6421
6421 + 6421 = 12842
12842 + 6421 = 19263
19263 + 6421 = 25684
25684 + 6421 = 32105
...

You can of course skip count by 6421 forever, so it is impossible to make a list of all numbers, but below is a Count by 6421 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 6421, the second column has the next ten numbers you get when you skip count by 6421, and so forth.

Count by 6421 Patterns
We organized the Skip Counting by 6421s 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 6421, but don't have the Counting by 6421s Chart above. Obviously, one pattern with counting by 6421s is that the number increases by 6421.

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 6421 goes 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 and 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 and so on for as long as you count by 6421.

Why Count by 6421?
We think that understanding and learning about skip counting by 6421 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by six thousand four hundred twenty-one, you are also creating a list of multiples of 6421 that you can use in math when you need the least common multiple. 6421 times n equals the nth multiple or skip count of 6421.

When you skip count by 6421, you are also creating a list of numbers that 6421 is divisible by. On top of that, skip counting by 6421 is the same as making the 6421 times table.

Skip Counting
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Count by 6422
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