number of such cuboids w11513Find the smallest prime number dividing t

1.	number of such cuboids w11513Find the smallest prime number dividing the sum 3 +5
Answer» Any product of odd numbers is odd. The sum of two odd numbers is even. 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

number of such cuboids w11513Find the smallest prime number dividing the sum 3 +5

Answer»

Any product of odd numbers is odd. The sum of two odd numbers is even. 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