Remainders and congruence
Remainders of sums and powers by their cycle, the calendar by remainders of 7, Fermat, Euler and linear congruences
The Remainders and congruence unit belongs to the Arithmetic and mental math section of Math Mental and has 21 lessons: remainders of sums and powers by their cycle, the calendar by remainders of 7, Fermat, Euler and linear congruences.
Lessons in this unit
- Remainder of a sum
- Remainder of a product
- Divide by d, remainder r
- Last digit of a power
- Remainder of a power by its cycle
- Remainder of a sum of powers
- Practice: remainders
- N days from now
- Leap year
- Leap years in a range
- Same date, years later
- 53 times in a year
- Weekday of a date
- Practice: calendar
- Fermat's little theorem
- Euler's φ function
- Euler's theorem
- Inverse modulo m
- Linear congruence
- Congruence with a common factor
- Unit test
This unit in numbers
18 lessons, 2 practices, and 1 test, with 180 questions in total.
It starts with “Remainder of a sum” and ends with “Congruence with a common factor”.
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