Question
Two different primes are said to equalize an integer if they are the same distance from the integer on either sides of the number line. Which integer among the following is the most highly equalized?
Answer: Option B
:
B
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B
20 is equalized by 3 pairs of primes (37,3), (29,11) and (23,17).
17 is equalized by 3 pairs of primes (31,3), (29,5) and (23,11).
18 is equalized by 4 pairs of primes (31,5), (29,7), (23,13) and (19,17).
15 is equalized by 3 pairs of primes (23,7), (19,11) and (17,13).
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