5 EINSTEIN MATHS QUIZ

• 45000

• 54000

• 20000

• 2000

Which of the following is not a prime number?

• 17

• 47

• 31

• 49

Which of the following is not a prime number?

• 17

• 47

• 31

• 49

How many factors does a prime number have?

• 1

• 2

• 3

• 4

How many factors does a composite number have?

• 1

• 2

• 3

• More than 3

Which of the following set of factors are factors of 10?

• 1, 2, 5, 10

• 2, 5, 10

• 5, 10

• 1, 10

Prime factorization of 20 is ............

The L.C.M. of 3, 11 is ...........

• 11 

• 33 

• 1

The H.C.F. of 9, 81 is ...........

• 81 

• 9 

• 18 

• 90

The L.C.M. of 20, 40 ...........

• 20 

• 800 

• 60 

• 40