52+54+56 = 162
(51+57)/2 = 54
The integers are 51, 53, 55 and 57.
Half of 51/57 = 51/(57*2) = 51/114 = 0.4474 approx.
The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.
51 54 57
The numbers are 51, 53, 55 and 57.
Let the lowest odd number equal x, thus: x + x + 2 + x + 4 = 57 3x + 6 = 57 3x = 57 - 6 3x = 51 x = 51/3 x = 17 The three numbers are therefore 17, 19 and 21.
The odd numbers between these values are 49, 51, 53, 55, 57 and 59.
-51
The sum of 57 is 57 itself. In mathematical terms, the sum refers to the result of adding two or more numbers together. Therefore, when you add 57 to another number or to itself, the sum will be the total value of those numbers, which in this case is 57.
The odd composite numbers between 50 and 60 are 51, 55, and 57. Because all the primes are odd except for 2 and adding two odd numbers will result in an even number, one of the two prime numbers must be 2, which when added to an odd number will result in an odd number. So, we subtract 2 from each of these numbers and check whether it is prime. 51 - 2 = 49, which is not prime. 55 - 2 = 53, which is prime. 57 - 2 = 55, which is not prime. Thus, the number is 55, which can be written as 2 + 53.