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Q.2 Find the common factors of:
(a) 4, 8 and 12
(b) 5, 15 and 25


Answer :

(a) 4, 8 and 12
Factors of 4 = 1, 2, 4
Factors of 8 = 1, 2, 4, 8
Factors of 12 = 1, 2, 3, 4, 6, 12
Hence, the common factors are 1, 2 and 4. (b) 5, 15 and 25
Factors of 5 = 1, 5
Factors of 15 = 1, 3, 5, 15
Factors of 25 = 1, 5, 25
Hence, the common factors are 1 and 5.

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