a) Write down the four factors of 45, apart from 1 and 45 - Junior Cycle Mathematics - Question 2 - 2019
Question 2
a) Write down the four factors of 45, apart from 1 and 45.
Answer:
b) n is a whole number bigger than 1. It has just two factors: 1 and n.
Put a tick (✓) in t... show full transcript
Worked Solution & Example Answer:a) Write down the four factors of 45, apart from 1 and 45 - Junior Cycle Mathematics - Question 2 - 2019
Step 1
Write down the four factors of 45, apart from 1 and 45.
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Answer
The four factors of 45, apart from 1 and 45, are 3, 5, and 15.
Step 2
Put a tick (✓) in the correct box to show what name is given to this type of number.
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Answer
The correct box to tick is 'prime,' as n has only two factors: 1 and n.
Step 3
Work out the value of p.
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Answer
Since the only other factor of p apart from 1 and p is 7, then p = 7 × 7 = 49.
Step 4
Write down the four factors of 12k + 8, apart from 1 and 12k + 8.
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Answer
The four factors of 12k + 8 are: 2, 4, 3k + 2, 6k + 4.
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