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Number Theory

Showing 1-75 of 268 answers

____ mod 9 = 5
  • 23 Correct
  • 74
  • -12
  • 13
_________ is defined as the remainder of the bn less the modulo.
  • Power Function 
  • Congruence Modulo 
  • Power Modulo 
  • Primitive Roots  Correct
-119 mod 16 = ?
  • 9 Correct
  • 11
  • 8
  • 7
-35 mod 7 = ?
  • 4
  • 3
  • 0 Correct
  • 1
-46 mod 5 = ?
  • 1
  • -1
  • 0
  • 4 Correct
-60 mod ___ = 0
  • 7
  • 12 Correct
  • 9
  • 16
-60 mod 3 = ?
  • 2
  • 0 Correct
  • 3
  • -1
-74 mod 8 = ?
  • 8
  • 6 Correct
  • 7
  • 5
-78 mod 8 = ?
  • 2 Correct
  • 4
  • 1
  • 0
-87 mod 6 = ?
  • 4
  • 3 Correct
  • 1
  • 2
-94 mod ____ = 8
  • 15
  • 17 Correct
  • 12
  • 13
"If a number is divisible by _________, multiply 3 to the last digit then add the remaining number. Repeat the steps if necessary." This rule applies in
  • Divisibility of 29 Correct
  • Divisibility of 17
  • Divisibility of 19
  • Divisibility of 23
129 mod 13 = ?
  • 10
  • 7
  • 12 Correct
  • 11
1890 is divisible by 2.
  • True Correct
  • False
1890 is divisible by 3.
  • True Correct
  • False
1890 is divisible by 5.
  • True Correct
  • False
1890 is divisible by 7.
  • True Correct
  • False
1890 is divisible by 9.
  • True Correct
  • False
24 mod 3 = ?
  • 1
  • 3
  • 4
  • 0 Correct
25 mod 5 = ?
  • 5
  • 0 Correct
  • 1
  • 3
35 modulo 7  = ?
  • 0 Correct
  • 2
  • 3
  • 5
37 mod 4 = ?
  • 1 Correct
  • 0
  • 3
  • 4
4199 is divisible by 11.
  • True
  • False Correct
4199 is divisible by 13.
  • True Correct
  • False
4199 is divisible by 17.
  • True Correct
  • False
4199 is divisible by 19.
  • True Correct
  • False
4199 is divisible by 23.
  • True
  • False Correct
42 mod 5 = ?
  • 2 Correct
  • 3
  • 5
  • 8
75 mod 6 = ?
  • 5
  • 2
  • 3 Correct
  • 1
83 mod 7 = ?
  • 3
  • 9
  • 6 Correct
  • 7
88 mod 9 = ?
  • 6
  • 7 Correct
  • 9
  • 8
A Fermat Number is a prime number that follows the form of 2s + 1.
  • True
  • False Correct
A number is divisible by 2 and 3. Thus it is also divisible by 6.
  • True Correct
  • False
A power function has a fixed __________.
  • exponent Correct
  • base
  • form
  • None of the choices
All numbers are coprime of 385, EXCEPT:
  • 3
  • 13
  • 5 Correct
  • 2
All numbers are divisible by 1.
  • True Correct
  • False
All numbers below are divisible by 3 except
  • 5783
  • 9102
  • 7562 Correct
  • 4704
All of the numbers below have an answer of 4, EXCEPT:
  • 95 mod 7
  • 76 mod 9
  • 64 mod 6
  • 73 mod 8 Correct
An exponential function has a fixed base that is raised to a variable.
  • True Correct
  • False
Base on the given factor tree, what numbers should be written inside the boxes?      
  • 2 and 3 Correct
  • 3 and 5
  • 3 and 4
  • 2 and 2
Based on the given factor tree, what is the unknown number?
  • 315
  • 135
  • 351
  • 153 Correct
Complete the expression '27 = 128 = ___ (mod 63)'
  • 4
  • 3
  • 2 Correct
  • 5
Complete the expression '27 = 128 = ___ (mod 63)'
  • 2 Correct
Complete the expression '53 = 125 = 14 (mod ___ )'
  • 37 Correct
Complete the expression '53 = 125 = 14 (mod ___ )'
  • 33
  • 37 Correct
  • 38
  • 43
Complete the expression =E2=80=98 __13 = 1,594,323 = 819 (mod 1584)'
  • 5
  • 2
  • 4
  • 3 Correct
Complete the expression =E2=80=98 __13 = 1,594,323 = 819 (mod 1584)'.
  • 7
  • 2
  • 3 Correct
  • 5
Complete the mathematical statement: 142 = ____ = 0 (mod 28)
  • 189
  • 169
  • 144
  • 196 Correct
Complete the mathematical statement: 22^2 = ____ = 25 (mod 27).
  • 484 Correct
  • 361
  • 400
  • 441
Complete the statement: 152 = 225 = ___ (mod 27).
  • 4
  • 9 Correct
  • 10
  • 7
Complete the statement: 252 = 625 = ___ (mod 28).
  • 11
  • 9 Correct
  • 7
  • 5
Describe the value k of the function f(x) = 5xk, so that the answer is a fraction?
  • Fraction 
  • Zero 
  • Positive 
  • Negative  Correct
Double the last digit of the given number and subtract it from the remaining number excluding the last digit. This rule applies in
  • Divisibility by 4
  • Divisibility by 7 Correct
  • Divisibility by 3
  • Divisibility by 11
Find the Greatest Common Divisor: 138 and 224
  • 3
  • 1
  • 4
  • 2 Correct
Find the Greatest Common Divisor: 210 and 320
  • 10 Correct
  • 5
  • 2
  • 20
Find the Greatest Common Divisor: 265 and 190
  • 25
  • 5 Correct
  • 15
  • 10
Find the Greatest Common Divisor: 36 and 99
  • 9 Correct
  • 12
  • 18
  • 3
Find the Greatest Common Divisor: 420 and 315
  • 105 Correct
  • 10
  • 15
  • 20
Find the Greatest Common Divisor: 469 and 357
  • 3
  • 9
  • 14
  • 7 Correct
Find the Greatest Common Divisor: 624 and 516
  • 12 Correct
  • 2
  • 3
  • 9
Find the Greatest Common Divisor: 77 and 121
  • 21
  • 11 Correct
  • 1
  • 22
Find the Greatest Common Divisor: 976 and 696
  • 4
  • 8 Correct
  • 2
  • 3
Find the Greatest Common Divisor: 352 and 41
  • 1
  • irregularly prime
  • coprime Correct
  • 2
Find the Greatest Common Divisor. Apply any method: 125 and 275
  • 25 Correct
  • 10
  • 15
  • 5
Find the Greatest Common Divisor. Apply any method: 178 and 150
  • 6
  • 8
  • 4
  • 2 Correct
Find the Greatest Common Divisor. Apply any method: 1800 and 2300
  • 50
  • 200
  • 300
  • 100 Correct
Find the Greatest Common Divisor. Apply any method: 244 and 260
  • 6
  • 2
  • 4 Correct
  • 8
Find the Greatest Common Divisor. Apply any method: 3425 and 4520
  • 5 Correct
  • 15
  • 25
  • 10
Find the Greatest Common Divisor. Apply any method: 366 and 420
  • 4
  • 6 Correct
  • 2
  • 3
Find the Greatest Common Divisor. Apply any method: 4250 and 2530
  • 15
  • 30
  • 5
  • 10 Correct
Find the Greatest Common Divisor. Apply any method: 500, 600 and 700
  • 150
  • 50
  • 10
  • 100 Correct
Find the Greatest Common Divisor. Apply any method: 78 and 96
  • 2
  • 6 Correct
  • 3
  • 4
Find the Greatest Common Divisor. Apply any method: 899 and 760
  • prime
  • 6
  • relatively prime or coprime Correct
  • 8
Find the Least Common Multiple: 10, 12 and 15
  • 60 Correct
  • 45
  • 70
  • 65
Find the Least Common Multiple: 2 and 3
  • 16
  • 6 Correct
  • 9
  • 10
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