Eighty Three (83)
1. It is a Prime number which can be expressed as the sum of 3 consecutive primes as well as the sum of 5 consecutive primes.
83 = 23 + 29 + 31
= 11 + 13 + 17 + 19 + 23
2. It is also the sum of first 3 primes that ends with 1.
83 = 11 + 31 + 41
3. The atomic number of Bismuth is 83. It is the heaviest stable elements.
4. It can be portioned 42 times with each term not larger than 2.
5. It is a Sophie Germain Prime number. A prime number p is a Sophie Germain prime if 2p +1 is also a prime number. For p = 83 , 2p + 1 = 167 is also a prime number. It is named after the French mathematician Marie Sophie Germain.
Dr Rajesh Kumar Thakur
rkthakur1974@gmail.com
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