43 is a prime number.
43 is the smallest prime formed from reverse concatenation of two consecutive numbers.
The first 43 digits of 43! form a prime number.
It is possible to form three sums of primes with the prime value of 43 using the ten first primes: 2+5+7+29 = 3+17+23 = 11+13+19 = 43.
London was founded as the Roman town of Londinium in 43 A.D.
Source: Prime Curios!
43 is the smallest prime formed from reverse concatenation of two consecutive numbers.
The first 43 digits of 43! form a prime number.
It is possible to form three sums of primes with the prime value of 43 using the ten first primes: 2+5+7+29 = 3+17+23 = 11+13+19 = 43.
London was founded as the Roman town of Londinium in 43 A.D.
Source: Prime Curios!
1 comments:
If we number the Primes :
P(1)=2, P(2)=3, P(3)=5, P(4)=7,etc.
We have 4*P(4)+3*P(3)=43
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