Just 1.
The numbers 20 and 11 can go into various larger numbers, but one common multiple they both divide evenly into is 220. This is because 220 is the least common multiple (LCM) of 20 and 11, as 220 is divisible by both numbers without leaving a remainder.
11, 13, 17, and 19
1,2,3,4,5,6,10,12,15,20,30,60
The three numbers go into any integer multiple of 880.
6 numbers can go into 20; they are 1, 2, 4, 5, 10 and 20.
The prime numbers between 10 and 20 are 11, 13, 17, and 19.
1 and 11.
11 13 17 19
five (including 20)
2,7,11 2 x 7 x 11 = 154 2 + 7 + 11 = 20
The prime numbers between 10 and 20 are 11, 13, 17, and 19.
They are: 2+7+11 = 20