Advertisements
Advertisements
Question
Find the HCF set of numbers using prime factorisation method.
27, 45, 81
Advertisements
Solution
27, 45, 81
Prime factorisation of 27 = 3 × 3 × 3
Prime factorisation of 45 = 3 × 3 × 5
Prime factorisation of 81 = 3 × 3 × 3 × 3
Common factors of 27, 45, 81 = 3 × 3 = 9
HCF (27, 45, 81) = 9
| 3 | 27 |
| 3 | 9 |
| 3 | 3 |
| 1 |
| 3 | 45 |
| 3 | 15 |
| 5 | 5 |
| 1 |
| 3 | 81 |
| 3 | 27 |
| 3 | 9 |
| 3 | 3 |
| 1 |
APPEARS IN
RELATED QUESTIONS
Two ropes, one 8 meters long and the other 12 meters long are to be cut into pieces of the same length. What will the maximum possible length of each piece be?
Find the HCF and LCM of
861, 1353
The HCF of 144 and 198 is
Find the HCF of the following numbers: 20, 28, and 36.
Find the HCF of the following numbers:
30, 42
Find the HCF of the following numbers:
36, 84
Find the HCF of the following numbers:
18, 54, 81
Three boys step off together from the same spot. Their steps measure 63 cm, 70 cm, and 77 cm respectively. What is the minimum distance each should cover so that all can cover the distance in complete steps?
The length, breadth, and height of a room are 825 cm, 675 cm, and 450 cm respectively. Find the longest tape which can measure the three dimensions of the room exactly.
Three tankers contain 403 litres, 434 litres and 465 litres of diesel respectively. Find the maximum capacity of a container that can measure the diesel of the three containers an exact number of times.
