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Prime Factorization and HCF Calculation

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Задание 2 (a)

List all the factors of 48.

The factors of 48 are the numbers that divide 48 without leaving a remainder. These are:

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Answer: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Задание 2 (b)

Write 48 as the product of its prime factors.

To find the prime factors of 48, we can use prime factorization:

  • 48 = 2 x 24
  • 24 = 2 x 12
  • 12 = 2 x 6
  • 6 = 2 x 3

So, 48 = 2 x 2 x 2 x 2 x 3 = $2^4 \cdot 3$

Write 504 as the product of its prime factors.

To find the prime factors of 504, we can use prime factorization:

  • 504 = 2 x 252
  • 252 = 2 x 126
  • 126 = 2 x 63
  • 63 = 3 x 21
  • 21 = 3 x 7

So, 504 = 2 x 2 x 2 x 3 x 3 x 7 = $2^3 \cdot 3^2 \cdot 7$

Answer:
* 48 = $2^4 \cdot 3$
* 504 = $2^3 \cdot 3^2 \cdot 7$

Задание 2 (c) (I)

Find the highest common factor (HCF) of 48 and 504.

First, list the prime factors of each number:

  • 48 = $2^4 \cdot 3$
  • 504 = $2^3 \cdot 3^2 \cdot 7$

To find the HCF, take the lowest power of common prime factors:

  • $2^3$ and $3^1$

HCF (48, 504) = $2^3 \cdot 3 = 8 \cdot 3 = 24$

Answer: 24

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