Question

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Write all the factors of the given numbers and list their common factors.
(1) 25, 30
(2) 24, 2
(3) 56, 72
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Answer 1

Answer:

(1) 25, 30

25= 1, 5, 25

30 = 1, 2, 3, 5, 6, 10, 15, 30

Common factors = 1, 5

(2) 24, 2

24 = 1, 2, 3, 4, 6, 8, 12, 24

2 = 1, 2

Common factors = 1, 2

(3) 56, 72

56 = 1, 2, 4, 7, 8, 14, 28, 56

72 = 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Common factors = 1, 2, 4, 8