The notions of the greatest common divisor and the least common multiple extend naturally to more than two numbers. Moreover, the prime-factorization method extends naturally to finding GCD(a, b, c) ar LCM(a, b, c). (a) If a = 32 . 52 . 73 b = 33 .51 . 7', and c = 22 • 53 .71, compute GCD(a, b, c) and LCM(a, b, c). (b)ls it necessarily true that GCD(a, b, c) • LCM(a, b, c) = abc? (c) Find numbers r, s, and t such that GCD(r, s, t) • LCM(r, s, t) = rst.

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The notions of the greatest common divisor and the least common multiple extend naturally to more than two numbers. Moreover, the prime-factorization method extends naturally to finding GCD(a, b, c) and
LCM(a, b, c).
(a) If a = 32 .52 .73, b = 33.51.71, and c= 22 .53.7', compute GCD(a, b, c) and LCM(a, b, c).
(b)ls it necessarily true that GCD(a, b, c)• LCM(a, b, c) = abc?
(c) Find numbers r, s, and t such that GCD(r, s, t) •LCM(r, s, t) = rst.
(a) GCD(a, b, c) = |
LCM(a, b, c) =
(b) Choose the correct answer below.
O A. Yes. Since the GCD is found using the larger exponents and the LCM is found using the smaller exponents, it must be true that GCD(a, b, c)• LCM(a, b, c) = abc.
O B. Yes. It is shown in part (a) that GCD(a, b, c) • LCM(a, b, c) = abc.
OC. Yes. Since the GCD is found using the smaller exponents and the LCM is found using the larger exponents, it must be true that GCD(a, b, c)• LCM(a, b, c) = abc.
D.
No it is not necessarily true that GCD(a b c)•I CM(a b c) = abc
OO C
Transcribed Image Text:The notions of the greatest common divisor and the least common multiple extend naturally to more than two numbers. Moreover, the prime-factorization method extends naturally to finding GCD(a, b, c) and LCM(a, b, c). (a) If a = 32 .52 .73, b = 33.51.71, and c= 22 .53.7', compute GCD(a, b, c) and LCM(a, b, c). (b)ls it necessarily true that GCD(a, b, c)• LCM(a, b, c) = abc? (c) Find numbers r, s, and t such that GCD(r, s, t) •LCM(r, s, t) = rst. (a) GCD(a, b, c) = | LCM(a, b, c) = (b) Choose the correct answer below. O A. Yes. Since the GCD is found using the larger exponents and the LCM is found using the smaller exponents, it must be true that GCD(a, b, c)• LCM(a, b, c) = abc. O B. Yes. It is shown in part (a) that GCD(a, b, c) • LCM(a, b, c) = abc. OC. Yes. Since the GCD is found using the smaller exponents and the LCM is found using the larger exponents, it must be true that GCD(a, b, c)• LCM(a, b, c) = abc. D. No it is not necessarily true that GCD(a b c)•I CM(a b c) = abc OO C
(c) Choose the correct answer below.
O A. r=3, s=5, t=7
O B. r= 3, s =9, t= 5
O C. r=8, s=2, t= 8
O D. r=7, s= 3, t= 7
Transcribed Image Text:(c) Choose the correct answer below. O A. r=3, s=5, t=7 O B. r= 3, s =9, t= 5 O C. r=8, s=2, t= 8 O D. r=7, s= 3, t= 7
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