Remembering prime numbers 1 to 100 trick

This post is about writing prime numbers from 1 to 100. This trick is valid for upto 100.

Let us consider A=1, B=2, C=3 and D=4.
Using these four letters we will establish the relationship between number of primes between every 10 numbers. Like 0-10, 11-20, 21-30.... Upto 91-100.

Lets come into the picture.

Now make the periods of 10 from 0 to 100 and assign them with letters as shown in diagram. The letters D D B B C B B C B A represents the number of primes between every 10 numbers.


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