PSLE Answer the following.
- What is the first common multiple of 4 and 8?
- List all the common factors of 28 and 62. Give your answers in numbers in ascending order. (Eg $(n1), $(n2), 4)
(a)
Multiples of 4: 4, 8
Multiples of 8: 8
First common multiple: 8
(b)
Factors of 28: 1, 2, 4, 7, 14, 28
Factors of 62: 1, 2, 31, 62
Common factors of 28 and 62: 1, 2
Answer(s): (a) 8; (b) 1, 2