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Grade 8 - Mathematics
5.23 Number Theory Review Test
: 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.
: The sum of any two odd numbers is _____.
: 29 and 39 examples for twin primes.(True/False)
: Every composite number has ___ factors.
At least 3
: 2,4,6,8,.... are divided by 2 then the remainder is _____.
: If p and q are two numbers and r is G.C.D. then L.C.M. = (p.q/r).(True/False)
: The sum of two odd numbers is an ___ number.
: Two numbers are relatively prime if their G.C.D. is 1. (True/False)
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