Cyclicity of 15

Here we will show you how to find the Cyclicity of 15. First you make the following calculations:

15¹ = 15
15² = 225
15³ = 3375
15⁴ = 50625
15⁵ = 759375

Then you look at the last digit of each of the numbers you found above: 5 5 5 5 5.

The Cyclicity of any number such as 15 is a sequence of 1 to 4 numbers. You will see that the last digits from the answers above will start repeating themselves. This sequence of numbers that repeats itself is called the Cyclicity of 15.

As you can see, the Cyclicity of 15 has 1 number. The Cyclicity of 15 is

5

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Cyclicity of 16
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