13
15 + 13 + 11 = 39
the next number is 5 and the one after that is 15
What would be the next number in this series 15 12 13 10 11 8?
11 13 15 18 20 20 The median is the middle number when they are in numerical order, so the median is 16.5. It is 16.5 because there is an even number of integers so you find the middle of 15 and 18
there is not one
19,17,15,13,11,9
13
11 and 13 are prime numbers but 15 is a composite number because it has more than two factors
11, 13, 15, 17, and 19 does.
11/15 is bigger than 13/20
17 :)
It is 15 because it has more than two factors
The smallest number divisible by 5 7 9 11 13 and 15 is 45,045.
-13
17
11 15 16