Mathematics for IGCSE & O level - Number (Section 2 - No. 24)
Which of these numbers is both a factor of 60 and a multiple of 3?
4
6
10
20
Explicação
The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The multiples of 3 include 3, 6, 9, 12, 15, 18. The only number that appears in both sets is 6.