Question

find the greatest number that will divide 390, 468 and 702 without leaving a remainder

Answer 1

Answer:

5 could be teh greatest number

Answer 2

Step I:

Here we need to divide 180 by 75.

[Divide the larger number by the smaller one].

Step II:

The first divisor is 75 and the remainder is 30, so we need to divide 75 by 30.

[Divide the first divisor by the first remainder].

Step III:

Now divide the second divisor 30 by the second remainder 15.

[Divide the second divisor by the second remainder].

Step IV:

The remainder becomes 0.

Step V:

Therefore, highest common factor = 15.

[The last divisor is the required highest common factor (H.C.F) of the given numbers].