35 is a composite number between 30 and 40 whose primev factors (5 and 7) have a sum of 12.
Composite.
Composite.
65 and 77, among others.
It is 44. The reason is that 44 = 11 X 4 and 11 + 4 =15.
39 is a composite number whose proper factors add up to 16.
The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.
44. 11*4=44 11+4= 15
Composite.
Composite.
65 and 77, among others.
Prime numbers have only two factors which are themselves and one and they add up in the same way as composite numbers which have more than two factors
It is 44. The reason is that 44 = 11 X 4 and 11 + 4 =15.
Composite: 651 has 3 as one of its factors (add the digits 6+5+1=12, which is a multiple of 3).Since it has a factor (3) in addition to itself and 1, it is composite.
39 is a composite number whose proper factors add up to 16.
21 and 30 if you're only counting distinct factors. Add 25 and 32 if you're not.
Prime. It is only divisible by itself and one.
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