R S Aggarwal Solutions for Chapter: Factors and Multiples, Exercise 7: TEST PAPER-2

On dividing $5035$ by $31$, the remainder is $13$. Find the quotient.

The HCF of two number is $15$ and their product is $1650$. Find their LCM.

Find the least $5$-digit number which is exactly divisible by $20, 25, 30$.

Find the largest number which divides $630$ and $940$ leaving remainders $6$ and $4$ respectively.

Find the least number which when divided by $16, 36$ and $40$ leaves $5$ as the remainder in each case.

Write all prime numbers between $50$ and $100$.

Can two numbers have $12$ as their HCF and $512$ as their LCM? Justify your answer.

Which of the following are co-primes?