Question

5^16+125^5 is divisible by??​

Answer 1

Answer:

5¹⁷+ 5¹⁸ +5¹⁹+5²⁰

=5¹⁷(1+5+ 5²+5³)

=5¹⁷(1+5+25+125)

=5¹⁷×156

Since 5¹⁷ is not divisible by 7 or 9 or 11 or 13

and 156 is divisible by only 13

Hence

5¹⁷+ 5¹⁸ +5¹⁹+5²⁰ is divisible only by 13

Step-by-step explanation:

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Answer 2

Answer:

6/3/2

Step-by-step explanation:

5¹⁶ + 125⁵

5¹⁶ + (5³)⁵

5¹⁶ + 5¹⁵

(5¹ + 5⁰) × 5¹⁵ [ taking 5¹⁵ as common]

(5 + 1) × 5¹⁵ [since anything to the power 0 is 1]

6 × 5¹⁵

So here, 6 is divisible by 6/3/2 [whatever is in the option]

Therefore, the above number is divisible by 6/3/2