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ollegr [7]
2 years ago
11

What are the last two digits of 7^1867? ​

Mathematics
1 answer:
Kipish [7]2 years ago
3 0

Considering that the powers of 7 follow a pattern, it is found that the last two digits of 7^{1867} are 43.

<h3>What is the powers of 7 pattern?</h3>

The last two digits of a power of 7 will always follow the following pattern: {07, 49, 43, 01}, which means that, for 7^n, we have to look at the remainder of the division by 4:

  • If the remainder is of 1, the last two digits are 07.
  • If the remainder is of 2, the last two digits are 49.
  • If the remainder is of 3, the last two digits are 43.
  • If the remainder is of 0, the last two digits are 01.

In this problem, we have that n = 1867, and the remainder of the division of 1867 by 4 is of 3, hence the last two digits of 7^{1867} are 43.

More can be learned about the powers of 7 pattern at brainly.com/question/10598663

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