Complete this list to show all the factors of 30 - OCR - GCSE Maths - Question 2 - 2019 - Paper 1
Question 2
Complete this list to show all the factors of 30.
1 2 .......... .......... 10 30
(b) Write down the highest common factor (HCF) of 25 and 30.
Worked Solution & Example Answer:Complete this list to show all the factors of 30 - OCR - GCSE Maths - Question 2 - 2019 - Paper 1
Complete this list to show all the factors of 30.
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To determine the factors of 30, we need to find all whole numbers that can multiply together to yield 30.
The factors of 30 are:
Thus, the completed list is:
1 2 3 5 6 10 15 30.
Write down the highest common factor (HCF) of 25 and 30.
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To find the highest common factor (HCF) of 25 and 30, we can list the factors of each number:
- Factors of 25: 1, 5, 25
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
The common factors are 1 and 5. Thus, the highest common factor is:
HCF = 5.
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