MEDIUM
6th CBSE
IMPORTANT
Earn 100

The H.C.F of two numbers is 145, their L.C.M is 2175. If one number is 725, find the other.

50% studentsanswered this correctly

Important Questions on Playing With Numbers

MEDIUM
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>EXERCISE>Q 6
Can two numbers have 16 as their H.C.F and 380 as their L.C.M? Give reason.
EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 1

Which of the following numbers is a perfect number?

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 2

Which of the following are not twin-primes?

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 3

Which of the following are co-primes?

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 4

Which of the following is a prime number?

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 5

The number of primes between 90 and 100 is

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 6

Which of the following numbers is a perfect number?

EASY
6th CBSE
IMPORTANT
Mathematics for Class 6>Chapter 2 - Playing With Numbers>OBJECTIVE TYPE QUESTIONS>Q 7

Which of the following is a prime number?