EduSahara™ Assignment
Name : Prime Factorization and L.C.M and H.C.F
Chapter : Real Numbers
Grade : SSC Grade X
License : Non Commercial Use
Question
1
1.
Find the prime factorization of
38
(i)
4
✕
19
(ii)
2
✕
16
(iii)
2
✕
19
2
(iv)
2
✕
18
(v)
2
✕
19
Question
2
2.
Find the prime factorization of
96
(i)
2
5
✕
1
(ii)
2
5
✕
3
2
(iii)
2
5
✕
2
(iv)
4
5
✕
3
(v)
2
5
✕
3
Question
3
3.
Find the prime factorization of
800
(i)
2
3
✕
5
2
(ii)
2
4
✕
5
2
(iii)
2
5
✕
5
3
(iv)
2
5
✕
5
2
(v)
5
5
✕
5
2
Question
4
4.
Find the prime factorization of
6160
(i)
2
4
✕
5
✕
7
✕
11
(ii)
2
✕
5
✕
7
✕
11
(iii)
2
4
✕
5
✕
7
✕
10
(iv)
2
4
✕
5
✕
7
✕
13
(v)
2
4
✕
5
✕
7
✕
11
2
Question
5
5.
Find the number of prime factors of
12
(i)
1
(ii)
0
(iii)
4
(iv)
3
(v)
2
Question
6
6.
Find the number of prime factors of
95
(i)
0
(ii)
4
(iii)
2
(iv)
3
(v)
1
Question
7
7.
Find the number of prime factors of
858
(i)
1
(ii)
3
(iii)
5
(iv)
4
(v)
7
Question
8
8.
Find the number of prime factors of
768
(i)
0
(ii)
4
(iii)
2
(iv)
1
(v)
3
Question
9
9.
Find the total number of factors of
25
(i)
4
(ii)
2
(iii)
0
(iv)
1
(v)
3
Question
10
10.
Find the total number of factors of
74
(i)
5
(ii)
1
(iii)
7
(iv)
4
(v)
3
Question
11
11.
Find the total number of factors of
84
(i)
13
(ii)
11
(iii)
15
(iv)
12
(v)
10
Question
12
12.
Find the total number of factors of
6480
(i)
48
(ii)
50
(iii)
52
(iv)
49
(v)
51
Question
13
13.
Find the HCF of
{16,12}
(i)
4
(ii)
6
(iii)
2
(iv)
3
(v)
5
Question
14
14.
Find the HCF of
{15,45}
(i)
12
(ii)
16
(iii)
14
(iv)
18
(v)
15
Question
15
15.
Find the HCF of
{24,12,30}
(i)
5
(ii)
7
(iii)
3
(iv)
8
(v)
6
Question
16
16.
Find the HCF of
{22,39,6,48}
(i)
0
(ii)
1
(iii)
3
(iv)
2
(v)
(-2)
Question
17
17.
Find the HCF of
{210,540}
(i)
32
(ii)
30
(iii)
29
(iv)
31
(v)
28
Question
18
18.
Find the HCF of
{160,60}
(i)
20
(ii)
21
(iii)
23
(iv)
19
(v)
17
Question
19
19.
Find the HCF of
{312,176,120}
(i)
6
(ii)
8
(iii)
9
(iv)
7
(v)
10
Question
20
20.
Find the HCF of
{2220,2880,120,480}
(i)
63
(ii)
59
(iii)
60
(iv)
61
(v)
57
Question
21
21.
Find the LCM of
{4,9}
(i)
37
(ii)
36
(iii)
38
(iv)
35
(v)
34
Question
22
22.
Find the LCM of
{4,8}
(i)
7
(ii)
8
(iii)
9
(iv)
10
(v)
6
Question
23
23.
Find the LCM of
{9,16,14}
(i)
1010
(ii)
1009
(iii)
1008
(iv)
1007
(v)
1006
Question
24
24.
Find the LCM of
{8,15,14,10}
(i)
838
(ii)
839
(iii)
840
(iv)
842
(v)
841
Question
25
25.
Find the LCM of
{60,30}
(i)
57
(ii)
61
(iii)
60
(iv)
63
(v)
59
Question
26
26.
Find the LCM of
{640,80}
(i)
637
(ii)
641
(iii)
639
(iv)
642
(v)
640
Question
27
27.
Find the LCM of
{90,120,240}
(i)
721
(ii)
720
(iii)
719
(iv)
717
(v)
723
Question
28
28.
Find the LCM of
{840,120,240,1200}
(i)
8401
(ii)
8400
(iii)
8398
(iv)
8403
(v)
8399
Question
29
29.
Find the product of LCM and HCF of
{8,6}
(i)
48
(ii)
47
(iii)
51
(iv)
49
(v)
46
Question
30
30.
Find the product of LCM and HCF of
{15,20}
(i)
298
(ii)
299
(iii)
301
(iv)
300
(v)
302
Question
31
31.
Find the product of LCM and HCF of
{20,8,16}
(i)
323
(ii)
318
(iii)
320
(iv)
321
(v)
319
Question
32
32.
Find the product of LCM and HCF of
{12,18,16,26}
(i)
3743
(ii)
3742
(iii)
3745
(iv)
3744
(v)
3746
Assignment Key
1) (v)
2) (v)
3) (iv)
4) (i)
5) (v)
6) (iii)
7) (iv)
8) (iii)
9) (v)
10) (iv)
11) (iv)
12) (ii)
13) (i)
14) (v)
15) (v)
16) (ii)
17) (ii)
18) (i)
19) (ii)
20) (iii)
21) (ii)
22) (ii)
23) (iii)
24) (iii)
25) (iii)
26) (v)
27) (ii)
28) (ii)
29) (i)
30) (iv)
31) (iii)
32) (iv)
