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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
5.23 Number Theory Review Test

Q 1: Two relatively prime numbers need not be prime numbers. (True/False)
True
False

Q 2: ______ is even prime number.
2
4

Q 3: A pair of primes are said to twin primes is they differ by 2.(True/False)
True
False

Q 4: G.C.D of 36 and 48 is ______.
8
6

Q 5: If G.C.D. of a and b is x, then G.C.D. of ma and mb is ____ given a, b and m are natural numbers.
max
mx

Q 6: The number of factors of 72 is _____.
10
12

Q 7: Two numbers are relatively prime if their G.C.D. is 1. (True/False)
False
True

Q 8: If p is a perfect number the sum of all its factors is ____.
p/2
2p

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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