PSLE Answer the following.
- What is the first common multiple of 2 and 5?
- List all the common factors of 32 and 56. Give your answers in numbers in ascending order. (Eg $(n1), $(n2), 2)
(a)
Multiples of 2: 2, 4, 6, 8, 10
Multiples of 5: 5, 10
First common multiple: 10
(b)
Factors of 32: 1, 2, 4, 8, 16, 32
Factors of 56: 1, 2, 4, 7, 8, 14, 28, 56
Common factors of 32 and 56: 1, 2, 4, 8
Answer(s): (a) 10; (b) 1, 2, 4, 8