If n = 3^10 – 2^10 which of the following is NOT a factor of n?  Choose the correct choice from the following options:
A) 43
B) 437
C) 23
D) 19
E) 373
3^10 - 2^10   = (3^5)^2 - (2^5)^2   =(3^5 + 2^5)(3^5- 2^4)   =(405+32(405-32)   =437*373   =19*23*373   Therefore, 43 is Not a factor of n.   43
<result>A</result>
If n = 3^10 – 2^10 which of the following is NOT a factor of n?