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Factors and Multiples
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Question 1 of 9
1. Question
45 can be expressed as the product of the primes as :
Correct
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Incorrect
OOPS !!! INCORRECT ANSWER
Correct Answer:
3 X 3 X 5 
Question 2 of 9
2. Question
Category: ACHIEVERS SECTIONWhich of the following pairs of numbers are coprimes ?
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OOPS !!! INCORRECT ANSWER
Correct Answer:
(111, 1111) 
Question 3 of 9
3. Question
The prime factors of 44 are
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OOPS !!! INCORRECT ANSWER
Correct Answer: 2 X 2 X 11 
Question 4 of 9
4. Question
Four common multiples of 14 and 8 are
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Incorrect
OOPS !!! INCORRECT ANSWER
Correct Answer: 56 , 112 , 168 , 224 
Question 5 of 9
5. Question
Which of the following are true?
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Correct Answer:
Only (i) , (iv) are correct 
Question 6 of 9
6. Question
Tom calculated 50 multiples of 4. Which statement is true about multiples of 4?
(Note: In this question more than correct answers are possible)Correct
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Incorrect
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Correct Answer:
All multiples of 4 are even numbers
The last two digits of the number are divisible by 4 
Question 7 of 9
7. Question
The prime number just after 59 is
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OOPS! Incorrect Answer
Correct Answer:
61 
Question 8 of 9
8. Question
The prime factorization of 187 is
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OOPS! Incorrect Answer
Correct Answer:
11 x 17 
Question 9 of 9
9. Question
How many numbers are there between 23 and 98?
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OOPS! Incorrect Answer
Correct Answer:
76