HCF and LCM

What is the number of divisors of $360$?

What is the least number which when divided by $15,17and18$ leaves remainder $3$ in each case?

The greatest number that can divide $140, 176$ and $264$ leaving remainder of $4, 6$ and $9$ respectively.

What will be the remainder when $({53}^{82}+53)$ is divided by $54$?

HCF and LCM of two numbers are $7$ and $140$ respectively. If the numbers are between $20$ and $45$, the sum of the numbers is _____.

The sum of two numbers is $216$ and their HCF is$27$. How many pairs of such number are there?

How many times do they toll together in $30$ minutes. If six bells commence tolling together and toll at intervals of $2, 4, 6, 8,10$ and $12$Seconds respectively ?

Find the L.C.M of $0.5, 2.1$and $2.8$.

The greatest $4$-digit number exactly divisible by $10, 15, 20$ is -

What is the HCF of $18$ and $48$?

Three different containers contain different quantities of a mixture of milk and water, whose measurements are $403 \mathrm{kg}, 434 \mathrm{kg}$ and $465 \mathrm{kg}$. What biggest measure be there to measure all the different quantities exactly?

Find H.C.F. Three number are in the ratio of $3 : 4 : 5$ and their L.C.M. is $2400$ ?

How many number lie between $1-1000$ which divisible by $6,7and15$.

Find the number of factors of $240$.

If L.C.M of two numbers is $231,$H.C.F of two numbers is $11$ and one number is $77$, the other number is _____ .

A number $\mathrm{N}$ is such that it is the LCM of all the positive integers from $2$ to $15$ . Then the number of digits $\mathrm{N}$ have

The sum of two numbers $\mathrm{x}$ and $\mathrm{y}$ is $234$ and their LCM is $756.$ Which of the following is the value of $\mathrm{x}$ or $\mathrm{y}?$

The sum of two numbers is$657$ and the HCF of those two numbers is $73.$ How many such possible pairs are there?

Three bells ring on an interval. If the time difference between $1^{\text{st }}$ and $2^{\text{nd }}$ bells ring is $240$sec, $2^{\text{nd }}$ and $3^{\mathrm{rd}}$bells ring is $83.33\%$ of the time difference between $1^{\text{st }}$ and $2^{\text{nd }}$ bells, $3^{\text{rd }}$ and $1^{\text{st }}$ bells ring is $0.8$ times of the time difference between $2^{\text{nd }}$ and $3^{\mathrm{rd}}$ bells, then after how much time do they ring together?

The LCM of two numbers is $5$ times their HCF. The product of two numbers is $3125$. Find HCF.