Find all integer numbers n, such that . . .
1+2+3+ ... +n gives reminder 3 when divided by 7<...
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Mathematics, 03.05.2020 13:59 alexisscalera7
Find all integer numbers n, such that . . .
1+2+3+ ... +n gives reminder 3 when divided by 7
n = ?? or n = ?? where k∈ ℤ
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Answers: 2
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