Numbers which are completely divisible by 2 are
even
odd
prime
composite
Primes which differ by 2 are called
relatively prime
perfect
twin primes
If the sum of factors of a number is twice the number then it is called
Relatively prime
Even
Odd
Perfect number
The first perfect number is
6
28
496
None of these
Product of two numbers = _______ x GCD
1
0
LCM
The number which is neither prime nor composite is
11
5
2
Sum of the first seven odd numbers is
25
36
40
49
LCM of 60 and 72 is
360
120
60
480
What these numbers 16 = 2 x 2 x 2 x 2 ; 15 = 3 x 5 denote?
Primes
Relatively primes
Twin primes
Composite
LCM and GCD of two numbers are 144 and 4. If one number is 16 then the other is
26
46
16
