Step 1: Write down the prime factors of each number.

Prime factors of 40: 2 x 2 x 2 x 5
Prime factors of 38: 2 x 19

Step 2: Identify the common prime factors.

The common prime factor is 2.

Step 3: The Highest Common Factor (HCF) is the product of all the common prime factors.

So, the HCF of 40 and 38 is 2.

Question

Step 1: Write down the prime factors of each number.

Prime factors of 40: 2 x 2 x 2 x 5
Prime factors of 38: 2 x 19

Step 2: Identify the common prime factors.

The common prime factor is 2.

Step 3: The Highest Common Factor (HCF) is the product of all the common prime factors.

So, the HCF of 40 and 38 is 2.

Knowee AI · Accepted Answer

Step 1: Write down the prime factors of each number.

Prime factors of 40: 2 x 2 x 2 x 5
Prime factors of 38: 2 x 19

Step 2: Identify the common prime factors.

The common prime factor is 2.

Step 3: The Highest Common Factor (HCF) is the product of all the common prime factors.

So, the HCF of 40 and 38 is 2.

Find the Highest Common Factor (HCF) of 40 and 38.