Numbers which are completely divisible by 2 are
even
odd
prime
composite
Sum of the first seven odd numbers is
25
36
40
49
Even prime is
2
4
10
100
Primes which differ by 2 are called
relatively prime
perfect
twin primes
GCD of 45 and 63 is
77
9
11
3
Which of the following are twin prime numbers.
2,7
31,51
191, 193
193, 197
The first perfect number is
6
28
496
None of these
Numbers which leave a remainder 1 when divided by 2 are
If the sum of factors of a number is twice the number then it is called
Relatively prime
Even
Odd
Perfect number
LCM of 5 and 7
12
20
35
57
