Question

Find the common factors of the given numbers : (i) 25,15 (ii) 16, 56 (iii)24,42 (iv) 16,18 (v) 12,76 (vi) 21, 34​

Answer 1

(i) ans .. 5

(ii) ans.. 2 , 4 , 8

(iii) ans.. 2 , 3 , 6 , 8

(iv) ans.. 2

(v) ans.. 2 , 4

Answer 2

Answer:

1) 25=5,25 and 15=3,5,15

the common factor is 5

2) 16=2,4,8,16 and 56=2,4,7,8,14,28, 56

common factors are 2,4,8.

3)24=2,3,4,6,8,12,24 and 42=2,3,6,7,14,21,42

common factors are 2,3,6.

4)16= 2,4,8,16 and 18=2,3,6,9,18.

common factor is 2.

5) 12=2,3,4,6,12 and 76=2,4,19,76

common factors are 2,4

6)21=3,7,21 and 34=2,17.

no common factors.