57 is the only one evenly divisible by 19 (or 3)
...and the other three are prime numbers
1 2 3 4 1
37
57
57
h
37
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
To obtain this, you must subtract 57 - 37. In general, getting the difference between two numbers means you must subtract one from the other.
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
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).