1, 5, 13, 65.
1 and 5
65 can be divided by an infinite number of different numbers.If we consider only positive whole numbers, then we're looking for the "factors" of 65.They are: 1, 5, 13, and 65.
The average of 56, 62, 65, 68, and 74 is 65. The average is calculated by adding up all the numbers and dividing by the total count of numbers.
All of them except 67, 71 and 73 which are prime numbers
Just 17.
It depends on how many numer combinations you are looking for. If you are looking at combinations of any size, the answer is 265 which includes the null combination - the combination of no numbers out of 65.
38.25 is the average The way you do it is...add all the numbers, then divide that number by the numbers of numbers you just added. 65+49+24+15=153 153/4=38.25
1, 5, 13, 31, 65, 155, 403, 2015
65 + 97 = 162 97 - 65 = 162 The two numbers are therefore 65 and 97.
That's an infinite list.
65 = LXV