2
Add 149, 151, 163 and 167 together.
None. Factors don't add, they multiply.
39 is a composite number whose proper factors add up to 16.
1.569
The four factors of 33 add up to 48.
The four factors of 33 add up to 48.
2
The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.
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)
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
151 + 24 = 175
137
a + b = 645 a - b = 151 Add: 2a = 796 a= 398, making b = 247
91+31+151=273
151
Add 149, 151, 163 and 167 together.