Write down the four factors of 45, apart from 1 and 45 - Junior Cycle Mathematics - Question 2 - 2019
Question 2
Write down the four factors of 45, apart from 1 and 45.
n is a whole number bigger than 1. It has just two factors: 1 and n.
Put a tick (✓) in the correct box to sh... show full transcript
Worked Solution & Example Answer: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 is a prime number.
Step 3
Work out the value of p.
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Answer
The value of p is 49, since it is the only number apart from 1 that has 7 as a factor (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, apart from 1 and 12k + 8, are 2, 4, 3k + 2, and 6k + 4.
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