How about: 1+2+3+20 = 26 out of many other combinations
1, 2, 3, 13, 26, 39, 78
39 and 2. 78 and 1. 26 and 3. 13 and 6.
48. This is because 1*2=2, 2+3=5, 5*2=10, 10+3=13, 13*2=26, 26+3=29, but 29*2≠48.
26
How about: 1+2+3+20 = 26 out of many other combinations
(3 cubed +1 squared) - 2 = 26 also written as (3^3 + 1^2) - 2 = 26 or (27+1)-2 = 26 so 3,3,2,2 and 1 can make 26
3 x 4 = 12... 1 + 12 = 13... 13 x 2= 26
Factors of 39: 1, 3, 13, 39 Factors of 26: 1, 2, 13, 26 Common factors: 1, 13.
The prime njumbers from 1 to 26 are 2, 3, 5, 7, 11, 13, 17, 19, and 23.
1, 2, 3, 6, 13, 26, 39, 78
These numbers: 1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234.
1, 2, 3, 13, 26, 39, 78
39 and 2. 78 and 1. 26 and 3. 13 and 6.
1, 2, 3, 6, 13, 26, 39, 78.
48. This is because 1*2=2, 2+3=5, 5*2=10, 10+3=13, 13*2=26, 26+3=29, but 29*2≠48.
There are an infinite number of sets of four numbers, including fractions and sets including two or four numbers that are negative. 156 = 2 x 2 x 3 x 13 For positive integers, the unique sets are 1, 2, 3, 26 1, 2, 6, 13 The complete sets are 1, 1, 1, 156 1, 1, 2, 78 1, 1, 3, 52 1, 1, 4, 39 1, 1, 6, 26 1, 1, 12, 13 1, 2, 2, 36 1, 2, 3, 26 1, 2, 6, 13 2, 2, 3, 13