Answer:
60 is a composite number, that has twelve factors. They are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.
Step-by-step explanation:
The factor pair 4 x 15 contains only composite numbers.
A composite number is a number that has factors other than 1 and itself. To determine if a factor pair contains only composite numbers, we need to check if both numbers in the pair are composite. Let's find the factor pairs of 60:
1 x 60 = 60
2 x 30 = 60
3 x 20 = 60
4 x 15 = 60
5 x 12 = 60
6 x 10 = 60
Out of these factor pairs, only the pair 4 x 15 contains two composite numbers (4 and 15). So the factor pair 4 x 15 contains only composite numbers.
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