The HCF of 16 and 25 is
2
4
1
0
If ' 1 ' is the only common factor of two numbers then the two numbers are said to be ________ .
Prime numbers
Relatively co - prime numbers
Twin primes
Composite numbers .
Which of the following statement is false?
Every number is both a factor and a multiple of itself.
56 is a multiple of each one of 4 , 7 and 8.
1 is called a unique number because it has only one factor.
30615 is divisible by 9.
The smallest positive integer is
100
9
By how much is the difference of 604 and 406.064 less than their sum ?
812.128
197.936
1010.064
1000
L.C.M of 28 and 48 is
340
345
336
350
Find the odd one :
72
44
35
37
_________ is the smallest factor of every number .
3
None of these
23
22
47
79
H.C.F of 34 and 78 using the rule of divisibility is
