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All problems with tag: Number-Theory



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Name сортировать Difficulty сортировать Users
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Good Order 600 3 Algebra, Number-Theory
Special square 500 54 Number-Theory, Squares
Viet said 500 95 Number-Theory
Concatenate 500 15 Number-Theory
Positive product of sums 300 61 Algebra, Equations, Number-Theory
Squared fours 200 176 Number-Theory, Algebra
Relatively prime with 2020 200 212 Number-Theory, Prime-Numbers
Odd divisors 300 79 Number-Theory, Divisors
Divisibility by 4 200 203 Number-Theory, Digits
!Fancy sequence 600 8 Combinatorics, Number-Theory
Tricky sequence 500 28 Number-Theory, Algebra, Sequences
All such 400 61 Number-Theory, Equations
x[x] 400 49 Number-Theory, Floor-Function
335577 500 32 Number-Theory, Powers
Sum of digits 2020 200 146 Number-Theory, Digits
Progressive sequence 500 18 Algebra, Number-Theory, Sequences
Tricky 400 60 Number-Theory
Almost squared numbers 300 44 Number-Theory
Exactly two roots 400 49 Number-Theory, Equations
NRD pair 200 89 Number-Theory, Prime-Numbers
U turn 200 143 Algebra, Number-Theory, Digits
Arithmetic derivative 500 40 Number-Theory, Functions
Prime Sets 500 8 Combinatorics, Number-Theory
VNT 500 96 Number-Theory, LTE
Rational Irrational 300 28 Algebra, Number-Theory
Uneven numbers 100 61 Number-Theory
Cool-divisble numbers 300 64 Number-Theory, Digits
Difference of squares 200 31 Combinatorics, Number-Theory
Powered Numbers (Duplicate) 300 49 Algebra, Number-Theory
Sum of Digits 200 61 Number-Theory, Digits
Mathrix 600 3 Algebra, Number-Theory, Matrices
Simple Altai 400 18 Number-Theory
Math lesson 400 39 Number-Theory, Combinatorics
Small triangular numbers 200 128 Algebra, Number-Theory
Interesting functions 600 12 Number-Theory
Sequence 300 42 Number-Theory
Smallest fraction 300 16 Algebra, Number-Theory
Cuboid 300 26 Number-Theory
Base4 300 30 Number-Theory
Powered Numbers 300 50 Algebra, Number-Theory
Unordered triplet 300 32 Algebra, Number-Theory
Irreducible Fractions 200 68 Number-Theory
Nice Integer 400 5 Number-Theory, Algebra, Polynomials
Flip 200 62 Algebra, Number-Theory, Digits
Interesting permutations 600 2 Number-Theory
!Fancy cubic 300 64 Algebra, Number-Theory
Binary Sum 500 25 Number-Theory, Algebra
Cube Cube Square 300 25 Algebra, Number-Theory
Factorial Factor 200 57 Number-Theory, Combinatorics
Not constant 300 23 Algebra, Number-Theory
Five Primes 100 108 Number-Theory
Lin's Numbers 400 28 Number-Theory, Algebra
Quadratic 300 44 Algebra, Number-Theory
Lin does shopping 200 25 Algebra, Number-Theory
Reverse Product 400 35 Combinatorics, Number-Theory