1000 - 452 is ________ number.
Even
Odd
Prime
None of these
Which of the following are twin prime numbers.
2,7
31,51
191, 193
193, 197
Even prime is
2
4
10
100
The first perfect number is
6
28
496
LCM and GCD of two numbers are 144 and 4. If one number is 16 then the other is
26
36
46
16
If the sum of factors of a number is twice the number then it is called
Relatively prime
Perfect number
Primes which differ by 2 are called
relatively prime
composite
perfect
twin primes
The number which is neither prime nor composite is
11
5
1
If a / b then GCD of a,b is
b
a
0
Number of factors for 48.
8
