The odd one out in that set of four numbers could be 57, as it is the only one in the list that is not a prime number.
35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59
The answer for the first 30 odd numbers (1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59) is 995.Actually, the sum of the first 30 odd numbers is 900.1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41+43+45+47+49+51+53+55+57+59 = 900
It is: 47+52+63+66 = 228/4 => 57 which is the average mean
Well, darling, the difference between 57 and 37 is 20. It's as simple as subtracting the smaller number from the bigger one. So, there you have it, 20 is the magic number in this little math equation.
The odd one out in that set of four numbers could be 57, as it is the only one in the list that is not a prime number.
27, 57, 77, yes. 37, 47, 67, no.
57+97+37+47+6 = 244
57
35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59
27, 57, 77, yes. The rest, no.
37, 41, 43, 47, and 53
27, 57 and 77 are composite.
There are 20. {21, 23, 25, 27, 29, 31, 33, 35, 37, 29, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59}
57 is an odd number.
37° 48′ 49″ S, 144° 57′ 47″ E-37.813611, 144.963056
31 37 41 43 47 53. (29 is also prime).