550/11=50
50/5=10
10/5=2
2+5+5+11=23
The distinct prime factors of 550 are 2, 5 and 11. They add up to 18.
Find the different prime factors of 550. They are 2, 5 and 11. Add them. The answer is 18.
17
65 and 77
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65 and 77
Prime factors of 18 are 2 and 3.
Prime factors of 18 are 2 and 3 Prime factors of 15 are 3 and 5
2, 3, and 13 are all prime numbers and their sum is equal to 18.
18 has prime factors 3 & 2 whereas 21 has prime factors 3 & 7.
The prime factors of 18 are 2, 3, and 3. The prime factors of 70 are 2, 5, and 7. The prime factors that 18 and 70 have in common are a single 2.
There are two pairs of prime numbers that express 18 as the sum of two prime numbers: 7 + 11 = 18 and 5 + 13 = 18.