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29 Apr 2019, 23:27
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A
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The “superprime” of a number is defined as the sum of its distinct prime factors. What is the “superprime” of 40?
A. 7
B. 8
C. 11
D. 13
E. 22
A. 7
B. 8
C. 11
D. 13
E. 22
30 Apr 2019, 03:06
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Bunuel
The “superprime” of a number is defined as the sum of its distinct prime factors. What is the “superprime” of 40?
A. 7
B. 8
C. 11
D. 13
E. 22
A. 7
B. 8
C. 11
D. 13
E. 22
40= 2^3*5^1
sum of distinct prime ; 2+5; 7
IMO A
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30 Apr 2019, 03:10
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Prime factors of 40 are 2,5 (as 40=2*2*2*5). Their Sum = 2+5=7
IMO, the answer should be A
IMO, the answer should be A
