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  • Class 4 Maths Study Material

An Educational platform for Preparation and Practice Class 4. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Maths for Class 4. This study material help Class 4, Maths students in learning every aspect of HCF and LCM. Students can understand HCF and LCM concept easily and consolidate their learning by doing Online Practice Tests on Maths,HCF and LCM chapter repeatedly till they excel in Class 4, HCF and LCM. Free ONLINE PRACTICE TESTS on Class 4, HCF and LCM comprise of Hundreds of Questions on HCF and LCM, prepared by the highly professionals team. Every repeat test of HCF and LCM will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on HCF and LCM. Attempt ONLINE TEST on Class 4,Maths,HCF and LCM in Academics section after completing this HCF and LCM Question Answer Exercise.


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  • Topic wise:HCF and LCM preparation in the form of QUESTION & ANSWER.
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HCF and LCM
Find L.C.M of 36 and 84 ?

a) 250
b) 252
c) 200
d) 120



Answer
Solution
Correct Answer Is : 252
Solution Is : Hint:- Choose the highest powers of the prime factors
Find H.C.F of 124 and 326 ?

a) 2
b) 4
c) 8
d) 6



Answer
Solution
Correct Answer Is : 2
Solution Is : Hint:- Choose the lowest powers of the common prime factors
Find the greatest number that will divide 64, 108 and 224 so as to leave the same remainder in each case.

a) 6
b) 8
c) 4
d) 2



Answer
Solution
Correct Answer Is : 4
Solution Is : Required number = H.C.F. of (108 - 64), (224 - 108) and (224 - 64)
The product of the LCM and HCF of two numbers is 84. The difference of the two numbers is 8. Find the numbers.

a) 12 and 6
b) 14 and 6
c) 21 and 4
d) 2 and 42



Answer
Solution
Correct Answer Is : 14 and 6
Solution Is : Hint:- let two numbers are x and x-8 .Then apply product of two numbers = L.C.M * H.C.F
Find the H.C.F.of 13*43*3, 17*26*42 , 13*3*2

a) 39
b) 78
c) 273
d) 156



Answer
Solution
Correct Answer Is : 39
Solution Is : Hint:- Choose the lowest powers of the common prime factors
Find the H.C.F of three numbers in the ratio 4: 6: 8 and their L.C.M is 2304.

a) 48
b) 24
c) 56
d) 72



Answer
Solution
Correct Answer Is : 24
Solution Is : Let the numbers are 4x , 6x , 8x .Their L.C.M is 192 x = 2304 i.e. x = 12.Therefore H.C.F of numbers (4 * 12), (6 * 12) and ( 8 * 12) is
What is the least

a) 123
b) 120
c) 124
d) 125



Answer
Solution
Correct Answer Is : 125
Solution Is : Hint:- The least number means L.C.M of 3,5,6 and 8.As it leaves remainder 5 to get it add 5 to their L.C.M .
Find the largest number that divides 124 and 82 leaving 4 as remainder.

a) 5
b) 4
c) 6
d) 7



Answer
Solution
Correct Answer Is : 6
Solution Is : The number divides exactly (124 - 4) = 120 the number divides exactly (82 - 4) = 78 therefore largest number that divides both is H.C.F of 120 and 78 is 6 .
Find the smallest number which on adding 15 to it is exactly divisible by 14, 48, 56?

a) 320
b) 321
c) 325
d) 336



Answer
Solution
Correct Answer Is : 321
Solution Is : L.C.M of 14, 48, 56 is 336 .Therefore, smallest number is 336 - 15 = 321
Find the greatest number that will divide 147,185 and 251

a) 60
b) 216
c) 12
d) 24



Answer
Solution
Correct Answer Is : 12
Solution Is : Hint: H.C.F of ( 147 - 3 ) , ( 185 - 5 ) and (251 -11)