SOLUTION: what is 7^4+222 (mod 9) 2401+222=2623 2623/9=291 REM 4 4 mod 9

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Question 933246: what is 7^4+222 (mod 9)
2401+222=2623
2623/9=291 REM 4
4 mod 9
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
That's correct - however a solution with less computation is to note that so . Also . So .