1.
Which number is
not
a factor of 315?
A.
3
B.
9
C.
5
D.
2
Hint
2.
A number is divisible by 6 if ______.
A.
the number is divisible by 2 and 3
B.
the last two digits are divisible by 2 and 3
C.
the ones digit is divisible by 2, and the tens digit is divisible by 3
D.
the sum of the digits is divisible by 6
Hint
3.
The number 64 is divisible by which of the following?
A.
5
B.
3
C.
6
D.
4
Hint
4.
Which number is divisible by 2, 3, and 5?
A.
3100
B.
1230
C.
2052
D.
945
Hint
5.
Choose the false statement.
A.
If a number is divisible by 2 then it is divisible by 4 because 4 = 2 × 2.
B.
No odd numbers are divisible by 4.
C.
All multiples of 9 are divisible by 3 because 9 = 3 × 3.
D.
Since 10 = 2 × 5, a number divisible by 10 is also divisible by 2 and by 5.
Hint