Question

Find HCF ( highest common factor ) of 195 , 312 , 546 . Answer for 7th standard . Please give me answer fast . ​

Answer 1

Answer:39

Step-by-step explanation:

The factors of 195 are: 1, 3, 5, 13, 15, 39, 65, 195

The factors of 312 are: 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312

The factors of 546 are: 1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546

Then the greatest common factor is 39.

Answer 2

Given: Three numbers - 195, 312 and 546

To find: Highest Common Factor of the given numbers

Solution: Using Prime Factorization method,

the given numbers can be expressed as:

195 = 3 × 5 × 13

312 = 2 × 2 × 2 × 3 × 13

546 = 2 × 3 × 7 × 13

Common factors of the given numbers are 3 and 13.

Highest Common Factor = 3 × 13 = 39

Hence, the HCF of 195, 312 and 546 is 39.