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What's the difference between the product of prime numbers within 10 plus the smallest two digits and subtracting the smallest two digits and subtracting the smallest three digits
2+3+5+7+10-10-100=-83
If a, B, C are all prime numbers, where a is the smallest, and a + B + C = 44, AB + 3 = C, then AB + C=______ ．
∵ a, B, C are all prime numbers, and a + B + C = 44, where a is the smallest, ∵ a = 2, according to the meaning of the problem, there are 2 + B + C = 442b + 3 = C, the solution is b = 13C = 29, ∵ ab + C = 2 × 13 + 29 = 55
Three prime numbers a, B, C, AB + BC = 221, then what is a + B + C equal to?
Hurry up
ab+bc=221
b(a+c)=13×17
So B = 13 or 17
If B = 13
Then a + C = 15, then a and C are odd even
Suppose a is even, then a = 2
C = 15, not prime
If B = 17
Then a + C = 13
a=2,c=11
So a + B + C = 2 + 17 + 11 = 30
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