What will be the remainder if 7^15 is divided by 5

1.	What will be the remainder if 7^15 is divided by 5
Answer» Answer: 3 Step-by-step explanation: 7 has a CYCLICITY of 4 at its last DIGIT(unit digit) varying 7,9,3,1 respectively..., so 7^15 means the last digit would be 3(since,15/4 gives REMAINDER 3), Therefore the remainder if 7^15 is divided by 5 is 3. Hope it helps u...

Answer»

Answer:

Step-by-step explanation:

7 has a CYCLICITY of 4 at its last DIGIT(unit digit) varying 7,9,3,1 respectively...,

so 7^15 means the last digit would be 3(since,15/4 gives REMAINDER 3),

Therefore the remainder if 7^15 is divided by 5 is 3.

Hope it helps u...

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What will be the remainder if 7^15 is divided by 5

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