56 + 56 + 28 + 8 + 2 + 1 = 151
2
35 is a composite number between 30 and 40 whose primev factors (5 and 7) have a sum of 12.
None. Factors don't add, they multiply.
Add 149, 151, 163 and 167 together.
39 is a composite number whose proper factors add up to 16.
The four factors of 33 add up to 48.
The four factors of 33 add up to 48.
The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.
2
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
151 + 24 = 175
137
a + b = 645 a - b = 151 Add: 2a = 796 a= 398, making b = 247
35 is a composite number between 30 and 40 whose primev factors (5 and 7) have a sum of 12.
91+31+151=273
151