68
The numbers 71, 73 and 79 are prime.
59 and 61.
17 is a prime number but 68 is Composite.
There are 5, they are: 47, 53, 59, 61, and 67
68
Oh, isn't that a happy little question! Let's see, the prime numbers between 30 and 40 are 31, 37. So, if we add them together, we get 68. Just remember, there are no mistakes, only happy accidents in math and painting!
The numbers 71, 73 and 79 are prime.
59 and 61.
17 is a prime number but 68 is Composite.
23
The numbers 53, 59, 61, 67, 71, 73, 79, 83 and 89 are prime.
The sum of the prime numbers 2, 5, and 61 is 68.
There are 5, they are: 47, 53, 59, 61, and 67
40: 2, 568: 2, 17
60
To find the prime factors of 68 start with any factor pair of 68 and keep factoring the composite numbers until all factors are prime: 2 x 34 2 x 2 x 17