Prime Factor Method for H.C.F
Trending Questions
Given that (p+3) is the H.C.F of 81 and 108. Find the value of p.
6
12
9
24
- 80 litres
- 40 litres
- 20 litres
- 50 litres
Manu goes to dance class once in every 6 days, to karate class once in every 12 days and to art classes once in every 18 days. He attends all the three classes on 1st of April. On which day, will he attend all the 3 classes again?
- 8th May
- 7th May
- 1st May
- 21st April
Find H.C.F of 25, 75 and 100.
56
25
100
95
- 80 litres
- 40 litres
- 20 litres
- 50 litres
The H.C.F of 13 & 7 is
- 7
- 1
- 26
- 13
The HCF of any two consecutive numbers is 1.
True
False
H.C.F of 45, 30 & 100 is
15
1
45
30
Three athletes A, B, C are participating in a racing event. They start running together. A takes 30 seconds to complete one round on the track, B takes 40 seconds and C takes 45 seconds. What is the minimum number of seconds after which will they all be at the same place again?
360 seconds
180 seconds
240 seconds
720 seconds
Three measuring tapes are cm, cm, cm long. Find the least length (in meters) of cloth that can be measured by the full length of each of these tapes.
- 576
- 13824
- 288
- 432
Find the largest number which divides and leaving remainder in each case.
Each of the quantities multiplied together to form a product is called a constant of the product.
- True
- False
- 1, 2, 3, 6, 8, 12, 24
- 1, 2, 4, 6, 8, 12, 24
- 1, 2, 3, 4, 6, 8, 24
- 1, 2, 3, 4, 6, 8, 12, 24
Find the common factors of , and .
- 5
- 1
- 9
- 4
H.C.F of 45, 30 & 15 is:
45
30
15
1
The H.C.F of 6 & 4 is
- 1
- 4
- 6
- 2
- 5 mL
- 1 mL
- 7 mL
- 3 mL
2. Write down all the factors of :
(ii)
- 160
- 60
- 16
- 240
The factors of 72 are __________________.
5, 7, 10, 11, 13, 17, 21 and 23
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72
5, 7, 13, 14, 15, 16, 17 and 19
5, 7, 11, 13, 15, 16, 17, 20, and 25
The factors of 72 are __________________.
5, 7, 11, 13, 15, 16, 17, 20, and 25
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72
5, 7, 13, 14, 15, 16, 17 and 19
5, 7, 10, 11, 13, 17, 21 and 23
- 45
- 15
- 75
- 35
- 0
- 1
- 2
- 3
The factors of 72 are
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 72
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
2, 3, 4 , 6, 8 , 9, 12, 18, 24, 36, 72
2, 3, 4, 6, 8, 9, 12, 18, 24, 36
- 432
- 288
- 576
- 13824
The factors of 72 are __________________.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72
5, 7, 13, 14, 15, 16, 17 and 19
5, 7, 10, 11, 13, 17, 21 and 23
5, 7, 11, 13, 15, 16, 17, 20, and 25
H.C.F of 45, 30 and 15 is
30
15
1
45
8, 12 and 24