What is the greatest common factor for the following set of numbers: 62, 217 and 155?

Question

help me please..

Answer 1

31

Answer 2

62 = 2 *31 and other 2 are odd so 2 cannot be a HCF. clearly it must be 31 and it is.

Answer 3

The Greatest Common factor of a group of numbers is the Largest number which will DIVIDE into each of them without remainder:

Hence The GCF in this case is: 31

as 62 = 31 x 2

&  217 =31 x 7

&  155 =31 x 5

Answer 4

31

31*2 = 62

31*7 = 217

31*5 = 155

Answer 5

Factors are numbers that when multiplied together, they give you the given.

Example the factors of:

1 = 1

2 = 1 and 2

3 = 1 and 3

6 = 1, 2, 3 and 6  (1x6), (2x3)

36 = 1, 2, 3, 4, 9, 13 and 36 (1x36) (2x13), (3x12), etc

through trial-and-error, find all of the multiples of each and the largest number that each one has in common is your (GCF) Greatest Common Fractor