Count by 666 (Skip Counting by 666s)

Count by 666

Here we will show you how to count by 666, discuss counting by 666 patterns, and tell you why knowing how to count by 666 matters. To start off, note that Count by 666 means counting in 666s, or count by six hundred sixty-sixes, and it is also called skip counting by 666.

How to count by 666
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 666, we count 666, 1332, 1998, 2664, and so on.

In other words, to count in intervals of 666 or skip counting by 666, we start with 666 and then add 666 to get the next number, and then continue adding 666 to the previous number to keep counting by 666, like this:

666
666 + 666 = 1332
1332 + 666 = 1998
1998 + 666 = 2664
2664 + 666 = 3330
...

You can of course skip count by 666 forever, so it is impossible to make a list of all numbers, but below is a Count by 666 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 666, the second column has the next ten numbers you get when you skip count by 666, and so forth.

Count by 666 Patterns
We organized the Skip Counting by 666s 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 666, but don't have the Counting by 666s Chart above. Obviously, one pattern with counting by 666s is that the number increases by 666.

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 5 over and over. The pattern of the last digit when you count by 666 goes 6, 2, 8, 4, 0 and 6, 2, 8, 4, 0 and so on for as long as you count by 666.

Why Count by 666?
We think that understanding and learning about skip counting by 666 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 sixty-six, you are also creating a list of multiples of 666 that you can use in math when you need the least common multiple. 666 times n equals the nth multiple or skip count of 666.

When you skip count by 666, you are also creating a list of numbers that 666 is divisible by. On top of that, skip counting by 666 is the same as making the 666 times table.

Skip Counting
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Count by 667
Here is the next number on our list that we used to skip count.