Shakib Al Hasan from Bangladesh, he is no. 1 cricket all rounder in both test cricket and One day cricket.
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It is always 1 and the prime number itself.
All numbers are divisible by 1. So, apart from the number 1, all numbers are divisible by another number. These numbers are therefore prime or composite.
The number 1 and the prime number itself.
No. And the proof is simple. Suppose there were such a number, X. Then X+1 is also a number and X+1 does not divide X.