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The first step in finding the HCF is to break the two numbers down into their prime factors. In this case:

385 = 5x7x11

525 = 3x5x5x7

The next step is to identify any common factors. In this case, both numbers have a 5 and a 7 as a prime factor. Multiplying these together gives:

5x7 = 35

and so the HCF of 385 and 525 is 35.

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Q: What is the highest common factor of 385 and 525?

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The factors of 385 are: 1, 5, 7, 11, 35, 55, 77, 385 The factors of 525 are: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525 The common factors are: 1, 5, 7, 35

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 140 and 525 is 35

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 315 and 525 is 105

25 is the GFC of 150 and 525.

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