Product of Two Numbers = HCF x LCM

Q.

Find LCM and HCF of $510$ and $92$?

Verify LCM and HCF is equal to the product of two numbers.

Q.

If $a=p^l.q^m.r^n$ and $b=p^x.q^y.r^z$ where p, q, r are primes and p<q<r and l, m, n, x, y, z are all natural numbers. Given HCF = $p^2$.$q^3.r$ and LCM = $p^3$.$q^4$.$r^3$, which one of the following is NOT true?

1. l + x = 5

2. m + y = 7

3. n + z = 4

4. l + m + n = x + y + z

Q. The Sum of the LCM and the HCF of the numbers 90 and 150 is?

1. 480

Q. HCF (16, 256) = 16, then the LCM (16, 256) = .

1. 16
2. 256
3. 128

Q. Find the LCM and HCF of 26, 91 and verify that LCM $\times$ HCF = product of the two numbers.

Q.

Question 2 (i)
Find the LCM and HCF of 26, 91 and verify that LCM $\times$ HCF = product of the two numbers.

Q.

Question 4
Given that HCF (306, 657) = 9, find LCM (306, 657).

Q.

Question 4
Given that HCF (306, 657) = 9, find LCM (306, 657).

Q. Find the LCM and HCF of 26, 91 and verify that LCM $\times$ HCF = product of the two numbers.

Q. If the HCF of 72 and 192 is 24, then find the LCM of 72 and 192.

1. 576

Q.

Question 2 (i)
Find the LCM and HCF of 26, 91 and verify that LCM $\times$ HCF = product of the two numbers.

Q. If the LCM of two numbers 39 and 221 is 663, what is the HCF?

1. 39
2. 7
3. 13
4. 66

Q.

HCF of two numbers is 1 and LCM is 221. If one of the two numbers is 17, find the other.

1. 13

2. 39

3. 200

4. 17

Q. HCF (16, 256) = 16, then the LCM (16, 256) = .

1. 16
2. 128
3. 256

Q. If the HCF of 72 and 192 is 24, then find the LCM of 72 and 192.

1. 576

Q. HCF (16, 256) = 16, then the LCM (16, 256) = .

1. 16
2. 128
3. 256

Q. Fill in the blank:
HCF of two numbers is _____ given that their LCM is 210 and the numbers are 42 and 70.

Q. The Sum of the LCM and the HCF of the numbers 90 and 150 is?

1. 480

Q. Is it possible to have two numbers whose HCF is 18 and LCM is 760 ? give reason.

Q. If the HCF of 175 and 900 = 25, then what will be the LCM of 175 and 900?

1. 6300