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Earn +20 ptsQ: What is the GCD of 17 19 and 13?
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What is the gcd of 91 and 117?
GCD: 13
How do you find the greatest common divisor of 85 and 102?
Divide the larger number by the smaller one and then replace the larger by the remainder. Repeat until a remainder is 0 or both numbers are 1. In the first case, the non-zero number is the GCD, in the other case, the numbers are coprme: GCD = 1. Thus GCD(85, 102) 102 = 1*85 + R = 17 so GCD(85, 17) 85 = 5*17 + R = 0 so GCD(0, 17) therefore 17. = GCD[85, (102-85)] = GCD(85, 17)
What is 17 plus 14 plus 17 plus 19 plus 18 plus 13 plus 11 equal?
17 + 14 + 17 + 19 + 18 + 13 + 11 = 109
What is the greatest common divisor of 19 and 18?
19 is a prime number, so the GCD is 1 * * * Right answer, wrong reason. 19 is indeed a prime but the GCD of 19 and 38, for example, is not 1.
What is the sum of prime numbers between 10 and 20?
11+13+17+19= 60ANSWER: 60
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