Count by 621 (Skip Counting by 621s)

Count by 621

Here we will show you how to count by 621, discuss counting by 621 patterns, and tell you why knowing how to count by 621 matters. To start off, note that Count by 621 means counting in 621s, or count by six hundred twenty-ones, and it is also called skip counting by 621.

How to count by 621
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 621, we count 621, 1242, 1863, 2484, and so on.

In other words, to count in intervals of 621 or skip counting by 621, we start with 621 and then add 621 to get the next number, and then continue adding 621 to the previous number to keep counting by 621, like this:

621
621 + 621 = 1242
1242 + 621 = 1863
1863 + 621 = 2484
2484 + 621 = 3105
...

You can of course skip count by 621 forever, so it is impossible to make a list of all numbers, but below is a Count by 621 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 621, the second column has the next ten numbers you get when you skip count by 621, and so forth.

Count by 621 Patterns
We organized the Skip Counting by 621s 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 621, but don't have the Counting by 621s Chart above. Obviously, one pattern with counting by 621s is that the number increases by 621.

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 621 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 621.

Why Count by 621?
We think that understanding and learning about skip counting by 621 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 hundred twenty-one, you are also creating a list of multiples of 621 that you can use in math when you need the least common multiple. 621 times n equals the nth multiple or skip count of 621.

When you skip count by 621, you are also creating a list of numbers that 621 is divisible by. On top of that, skip counting by 621 is the same as making the 621 times table.

Skip Counting
Need to skip count by another number? Enter another number for us to skip count for you.

Count by 622
Here is the next number on our list that we used to skip count.