Count by 397 (Skip Counting by 397s)

Count by 397

Here we will show you how to count by 397, discuss counting by 397 patterns, and tell you why knowing how to count by 397 matters. To start off, note that Count by 397 means counting in 397s, or count by three hundred ninety-sevens, and it is also called skip counting by 397.

How to count by 397
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 397, we count 397, 794, 1191, 1588, and so on.

In other words, to count in intervals of 397 or skip counting by 397, we start with 397 and then add 397 to get the next number, and then continue adding 397 to the previous number to keep counting by 397, like this:

397
397 + 397 = 794
794 + 397 = 1191
1191 + 397 = 1588
1588 + 397 = 1985
...

You can of course skip count by 397 forever, so it is impossible to make a list of all numbers, but below is a Count by 397 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 397, the second column has the next ten numbers you get when you skip count by 397, and so forth.

Count by 397 Patterns
We organized the Skip Counting by 397s 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 397, but don't have the Counting by 397s Chart above. Obviously, one pattern with counting by 397s is that the number increases by 397.

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 397 goes 7, 4, 1, 8, 5, 2, 9, 6, 3, 0 and 7, 4, 1, 8, 5, 2, 9, 6, 3, 0 and so on for as long as you count by 397.

Why Count by 397?
We think that understanding and learning about skip counting by 397 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by three hundred ninety-seven, you are also creating a list of multiples of 397 that you can use in math when you need the least common multiple. 397 times n equals the nth multiple or skip count of 397.

When you skip count by 397, you are also creating a list of numbers that 397 is divisible by. On top of that, skip counting by 397 is the same as making the 397 times table.

Skip Counting
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Count by 398
Here is the next number on our list that we used to skip count.