Translation:
[The world’s most mysterious number is 142857.]
It is found in the ancient Egyptian Pyramids.
142857 x 1=142857
142857 x 2=285714
142857×3=428571
142857×4=571428
142857×5=714285
142857×6=857142
142857×7=999999
Amazing? Each multiple is a cyclic permutation of the original numer 142857.
You may read more about Egyptian mathematics in this wonderful book: Count Like an Egyptian: A Hands-on Introduction to Ancient Mathematics
Singapore Maths Tuition 
I have this book and it’s a very good read.
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Yeah, Egyptian Math is mysterious and quite powerful, otherwise they wouldn’t have been able to build the pyramids.
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