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<u>Step-by-step explanation for part 1:</u>
<u>We know that:</u>
- 24 and 40 are divisible by 4
<u>Since they are divisible by 4, we can factorize them.</u>
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<u>Step-by-step explanation for part 2:</u>
<u>We know that:</u>
- 30 and 40 are divisible by 10
<u>Since they are divisible by 10, we can factorize them.</u>
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<u>Step-by-step explanation for part 3:</u>
<u>We know that:</u>
- 30 and 42 are divisible by 6
<u>Since they are divisible by 6, we can factorize them.</u>
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