On checking with 3,5,7,9,11, 13 we find 13 is a factor
1729 = 13 * 133 again checking with 17, 13, 19, we find
= 13 * 19 * 7 = 7 * 13 * 19
ascending order 7<13<19
The prime factors have a difference of 6. So they are in arithmatic progression.
On checking with 3,5,7,9,11, 13 we find 13 is a factor
1729 = 13 * 133 again checking with 17, 13, 19, we find
= 13 * 19 * 7 = 7 * 13 * 19
ascending order 7<13<19
The prime factors have a difference of 6. So they are in arithmatic progression.
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