Mathematics-Multiples and Factors [NSTSE (National Science Talent Search Exam- Unified Council) Class 4]: Questions 1 - 7 of 99

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Question number: 1

» Mathematics » Multiples and Factors

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MCQ▾

Question

The number 12 has six factors: . The table below lists the number of factors for some numbers.

This table shows lists the number of factors for some numbers

Find the number of prime numbers between 40 and 50

Number

Number of factors

41

2

43

2

45

6

47

2

49

3

From this we can say that the number of prime numbers between 40 and 50 is:

Choices

Choice (4)Response

a.

1

b.

0

c.

3

d.

4

Question number: 2

» Mathematics » Multiples and Factors

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MCQ▾

Question

LCM stands for:

Choices

Choice (4)Response

a.

Less common multiply

b.

Least common multiple

c.

Least common multiplier

d.

None of the above

Question number: 3

» Mathematics » Multiples and Factors

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Question

Out of the composite number is:

Choices

Choice (4)Response

a.

23

b.

27

c.

31

d.

37

Question number: 4

» Mathematics » Multiples and Factors

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Question

Difference between the least common factor and the least common multiple of the number shown on the spike abacus is:

This image shows the two numbers define on the spike abacus

This Image Shows the Two Numbers Define on the Spike Abacus

Choices

Choice (4)Response

a.

10

b.

6

c.

8

d.

12

Question number: 5

» Mathematics » Multiples and Factors

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41 has only two factors: 1 and ________.

Choices

Choice (4)Response

a.

24

b.

21

c.

0

d.

41

Question number: 6

» Mathematics » Multiples and Factors

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MCQ▾

Question

Find the sum of least prime number and the least composite number.

Choices

Choice (4)Response

a.

29

b.

50

c.

10

d.

44

Question number: 7

» Mathematics » Multiples and Factors

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MCQ▾

Question

A composite number has ________.

Choices

Choice (4)Response

a.

at one’s place.

b.

More than 2 factors.

c.

at one’s place.

d.

Only 2 factors.

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