false none of the numbers add up to 31
63 and 3
53
Defective numbers are when all the factors of a number add up to be smaller than the number.Ex.:39 1+3+13=17 17<39 39 is defective
(3 x 3) + (5 x 5) = 9 + 25 = 34
54
They are 3+17 = 20
30
false none of the numbers add up to 31
54
23 + 3 + 3 5 + 7 + 17
63 and 3
13, 17, and 13. 13+13 = 26 + 17 = 43
36
12. Add them all up and divide by the number of numbers (3)
53
add all the numbers up and count how many numbers there are then divide it2+3+5+7=17 count the numbers. 4 17 divide by 4 = 4.25