A factor of 29161137 is

1

(a)

13

(b)

7

(c)

23

(d)

83

Using divisibility tests, determine which of the following numbers is divisible by 2?

1

(a)

315623

(b)

34678

(c)

789

(d)

2651

State which of the following is correct prime factorisation of numbers.

1

(a)

2x3x3x3x4=216

(b)

2x3x7x7x7x11=22638

State which of the following is correct prime factorisation of the numbers.

1

(a)

7x13x31x37x46

(b)

7x13x31x37x47

Which of the following is not co-prime?

1

(a)

8. 10

(b)

11, 12

(c)

1, 3

(d)

31, 33

A number which has only two factors is called a______________

1

(a)

prime Number

A number which has more than two factors is called a ________________

1

(a)

composite number.

1 is neither________ nor__________.

1

(a)

prime nor composite number.

The smallest prime number is___________

1

(a)

2

The smallest composite number is ______________

1

(a)

4

The sum of three odd numbers is even.

1

(a) True

(b) False

The sum of two odd numbers and one even number is even.

1

(a) False

(b) True

The product of three odd numbers is odd.

1

(a) False

(b) True

If an even number is divided by 2, The quotient is always odd.

1

(a) True

(b) False

All prime numbers are odd.

1

(a) True

(b) False