159
400 600 300 1300
400 - 78 - 22 --84 - 16 - 81 - 19 - 27 = 400 - 78 - 22 + 84 - 16 - 81 - 19 - 27 = 241
The twin prime pairs from 200 to 400 are (227, 229), (239, 241), (269, 271), (281, 283), (311, 313), (and 347, 349).
241
It's usually americium-241. It undergoes alpha-decay with a half-life of about 400 years. Am-241 is artificially manufactured; it doesn't occur in nature.
about $200.00 In MINT condition, no you can easily get 400-500 for it.
Let's denote the two numbers as x and y. We have the following system of equations: x + y = 400 and xy = 960000. From the first equation, we can express y in terms of x as y = 400 - x. Substituting this into the second equation gives us x(400 - x) = 960000. Simplifying this quadratic equation gives us x^2 - 400x + 960000 = 0. Solving for x using the quadratic formula, we get x = 200 ± 20√241. Therefore, the two numbers are 200 + 20√241 and 200 - 20√241.
Since 241 is a prime, sqrt(241) cannot be simplified.
30% of 241 = 241*30/100 = 72.3
1 x 241, 241 x 1.
241² = 58081
http://www.rimfirecentral.com/forums/showthread.php?t=9555 95% specimen is worth about $400