If the set R consists of the integers 1 to 10, inclusive, what is the Greatest Factor of the sum of the Primes in the set R?
a) 1
b) 9
c) 17
d) 18
e) 27
2007-07-10 17:25:36 · 6 answers · asked by ? 2 in Science & Mathematics ➔ Mathematics
2+3+5+7=17
c) 17
those who said b) 9 chose the prospective answer
(choice there to fool)
2007-07-10 18:05:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The primes in set R are (1,2,3,5,7) thus the sum of the primes is 1+2+3+5+7 = 18, thus the Greatest factor within R (1 to 10) is 9.
2007-07-11 00:30:40 · answer #2 · answered by esvalpo 2 · 0⤊ 2⤋
b. because 1 + 2 + 3 + 5 + 7 = 18 and 18's biggest factor in the set 1 thru 10 is 9.
2007-07-11 00:34:06 · answer #3 · answered by spirit dummy 5 · 0⤊ 1⤋
a) 1
as sum of primes in set R is
2+3+5+7 =17
And the Greatest Factor of 17 in the set R
is 1.
2007-07-11 00:29:35 · answer #4 · answered by sweet n simple 5 · 0⤊ 0⤋
For those of you who don't know, 1 is NOT prime!
Part of the definition of a prime number is that it should not be a unit.
2007-07-11 00:38:37 · answer #5 · answered by pbb1001 5 · 0⤊ 0⤋
{2,3,5,7}
sum=2+3+5+7=17
17=1*17
answer: 17
c) 17
2007-07-11 00:31:59 · answer #6 · answered by iyiogrenci 6 · 0⤊ 1⤋