Count by 1621 (Skip Counting by 1621s)

Count by 1621

Here we will show you how to count by 1621, discuss counting by 1621 patterns, and tell you why knowing how to count by 1621 matters. To start off, note that Count by 1621 means counting in 1621s, or count by one thousand six hundred twenty-ones, and it is also called skip counting by 1621.

How to count by 1621
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 1621, we count 1621, 3242, 4863, 6484, and so on.

In other words, to count in intervals of 1621 or skip counting by 1621, we start with 1621 and then add 1621 to get the next number, and then continue adding 1621 to the previous number to keep counting by 1621, like this:

1621
1621 + 1621 = 3242
3242 + 1621 = 4863
4863 + 1621 = 6484
6484 + 1621 = 8105
...

You can of course skip count by 1621 forever, so it is impossible to make a list of all numbers, but below is a Count by 1621 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 1621, the second column has the next ten numbers you get when you skip count by 1621, and so forth.

Count by 1621 Patterns
We organized the Skip Counting by 1621s 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 1621, but don't have the Counting by 1621s Chart above. Obviously, one pattern with counting by 1621s is that the number increases by 1621.

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 1621 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 1621.

Why Count by 1621?
We think that understanding and learning about skip counting by 1621 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by one thousand six hundred twenty-one, you are also creating a list of multiples of 1621 that you can use in math when you need the least common multiple. 1621 times n equals the nth multiple or skip count of 1621.

When you skip count by 1621, you are also creating a list of numbers that 1621 is divisible by. On top of that, skip counting by 1621 is the same as making the 1621 times table.

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

Count by 1622
Here is the next number on our list that we used to skip count.