When you are asked to calcluate the sum of some numbers it simply meants add them all together
Here the answer is 98
42 has 8 factors: 1 2 3 6 7 14 21 42.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The composite factors from this list are 6, 14, 21, and 42.
1, 2, 3, 6, 7, 14, 21, 42
42 is divisible by: 1 2 3 6 7 14 21 and 42.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.
1, 2, 3, 6, 7, 14, 21, 42 -1, -2, -3, -6, -7, -14, -21, -42
-42, -21, -14, -7, -6, -3, -2, -1, 1, 2, 3, 6, 7, 14, 21, 42
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21 and 42. The factor pairs of 42 are 1 x 42, 2 x 21, 3 x 14, and 6 x 7.1, 2, 3, 6, 7, 14, 21, 42.1 2 3 6 7 21 14 42
1, 3, 7, 21 1, 2, 3, 6, 7, 14, 21, 42
Sum: 1 2 3 6 7 14 21 41 42 82 123 246 287 574 861 1722 = 4,032
42 1*42 = 42 2*21= 42 3*14 = 42