A number leaves remainder 7 when divided by 13. What is the remainder when its fourth power is divided by 13?
Answer and explanation
Correct answer: 9
Step 1: (7^2=49), and 49 leaves remainder 10 when divided by 13. Step 2: For (7^4), check (10^2=100). Step 3: (100=13\times7+9), so the remainder is 9.
Frequently asked questions
What is the correct answer to this question?
9
Why is this the correct answer?
Step 1: (7^2=49), and 49 leaves remainder 10 when divided by 13. Step 2: For (7^4), check (10^2=100). Step 3: (100=13\times7+9), so the remainder is 9.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Euclid’s Division Lemma.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.