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Questions and Answers
How many positive integers not exceeding 60 are divisible by 7?
How many positive integers not exceeding 60 are divisible by 7?
- 5 (correct)
- 3
- 4
- 6
Which of the following is false?
Which of the following is false?
- 27 – 3 is divisible by 9 (correct)
- 50 divided by 10 gives a remainder of 5
- 4142 is divisible by 12
- 260 – 4 is divisible by 16
If a positive integer 'a' is congruent to 4 modulo 12, which of these integers is also congruent to 4 modulo 12?
If a positive integer 'a' is congruent to 4 modulo 12, which of these integers is also congruent to 4 modulo 12?
- 37
- -20 (correct)
- -15
- -28
If a|b and b|c, what can be concluded about a and c?
If a|b and b|c, what can be concluded about a and c?
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What is the relationship between ab and cd if a|c and b|d?
What is the relationship between ab and cd if a|c and b|d?
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What do we call it when an integer a divides another integer b?
What do we call it when an integer a divides another integer b?
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What is the requirement for divisibility between integers a and d?
What is the requirement for divisibility between integers a and d?
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What does the modulus function moda m b= give?
What does the modulus function moda m b= give?
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Under a modulus m, what set do all results of arithmetic operations belong to?
Under a modulus m, what set do all results of arithmetic operations belong to?
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If (mod )a b m≡, what is the condition that must exist?
If (mod )a b m≡, what is the condition that must exist?
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