Answers

2015-09-21T17:58:06+05:30
3^11 and 5^13 are both the product of odd numbers, so they are both odd So 3^11 + 5^13 is the sum of two odd numbers and is therefore even. Any even number is divisible by 2. Therefore 2 is the smallest prime that divides 3^11 + 5^13. [In fact, 2 is the smallest prime, period!]..
1 5 1