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Year 8 Exam  >  Year 8 Tests  >  Test: Factors, multiples, and primes - Year 8 MCQ

Test: Factors, multiples, and primes - Year 8 MCQ


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10 Questions MCQ Test - Test: Factors, multiples, and primes

Test: Factors, multiples, and primes for Year 8 2024 is part of Year 8 preparation. The Test: Factors, multiples, and primes questions and answers have been prepared according to the Year 8 exam syllabus.The Test: Factors, multiples, and primes MCQs are made for Year 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Factors, multiples, and primes below.
Solutions of Test: Factors, multiples, and primes questions in English are available as part of our course for Year 8 & Test: Factors, multiples, and primes solutions in Hindi for Year 8 course. Download more important topics, notes, lectures and mock test series for Year 8 Exam by signing up for free. Attempt Test: Factors, multiples, and primes | 10 questions in 20 minutes | Mock test for Year 8 preparation | Free important questions MCQ to study for Year 8 Exam | Download free PDF with solutions
Test: Factors, multiples, and primes - Question 1
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Which of these is not a factor of 80?

Detailed Solution for Test: Factors, multiples, and primes - Question 1
26 x 3 = 78 and 27 x 3 = 81. 80 cannot be divided by 3 to a whole number
Test: Factors, multiples, and primes - Question 2
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A number which divides exactly into two other numbers is what sort of factor of those numbers?

Detailed Solution for Test: Factors, multiples, and primes - Question 2
The two numbers have that factor in common
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Test: Factors, multiples, and primes - Question 3
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Which of these sets of numbers are all factors of 80?

Detailed Solution for Test: Factors, multiples, and primes - Question 3
In all the incorrect answers there is a number that will not divide into 80 and give a whole number as the result
Test: Factors, multiples, and primes - Question 4
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Which of these is a factor of 66?
Detailed Solution for Test: Factors, multiples, and primes - Question 4
22 x 3 = 66
Test: Factors, multiples, and primes - Question 5
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Which of the following is a factor pair of 32?
Detailed Solution for Test: Factors, multiples, and primes - Question 5
An easy one this. 2 x 16 = 32
Test: Factors, multiples, and primes - Question 6
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Is 4 a factor of 21?
Detailed Solution for Test: Factors, multiples, and primes - Question 6
If you divide 4 into 21 the answer is 5.25. Because the answer is NOT a whole number, 4 is NOT a factor of 21
Test: Factors, multiples, and primes - Question 7
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Which of the following numbers is a prime number?
Detailed Solution for Test: Factors, multiples, and primes - Question 7

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. 23 fits this definition as it can only be divided evenly by 1 and 23.

Test: Factors, multiples, and primes - Question 8
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Which of these is a factor of 33?
Detailed Solution for Test: Factors, multiples, and primes - Question 8
11 is the only one that can be divided into 33 and produce a whole number
Test: Factors, multiples, and primes - Question 9
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What is the least common multiple (LCM) of 12 and 18?
Detailed Solution for Test: Factors, multiples, and primes - Question 9

To find the LCM, we determine the smallest number that both 12 and 18 divide into evenly. The LCM of 12 and 18 is 36 because it's the smallest number that is divisible by both 12 (which is 3 × 22) and 18 (which is 32 × 2).

Test: Factors, multiples, and primes - Question 10
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Which of the following numbers is NOT a multiple of 9?
Detailed Solution for Test: Factors, multiples, and primes - Question 10

A multiple of 9 is any number that can be divided evenly by 9. To determine this, you can check if dividing the number by 9 results in an integer. For 45, dividing by 9 gives 5, which is an integer. Therefore, 45 is a multiple of 9. The correct answer is C) 45, which is NOT a multiple of 9

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