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# Is 7 the greatest common factor of 21 and 35 and why?

Updated: 8/31/2023 Wiki User

8y ago

The factors of 21 are:

1, 3, 7, 21

The factors of 35 are:

1, 5, 7, 35

The common factors are:

1, 7

The Greatest Common Factor:

GCF = 7 Wiki User

8y ago   Wiki User

11y ago

21 and 35 are both in the 7 timetable, so 7 is a common factor.
Because 7 can divide into both 21 and 35 evenly.   Wiki User

13y ago

7 is the greatest common factor of 21 and 35.   Wiki User

8y ago

Yes.   Wiki User

12y ago

True   Kairoy Thomas

Lvl 2
1y ago

Yes   Earn +20 pts
Q: Is 7 the greatest common factor of 21 and 35 and why?
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Related questions

7

### What is the greatest common factor of 21 35 and 14?

The greatest common factor (GCF) is: 7.7

### What is the greatest common factor of 21 and 35?

The GCF of 21 and 35 is 7.The factors of 21 are 1, 3, 7, and 21The factors of 35 are 1, 5, 7, and 35The greatest (largest) factor common to both 21 and 35 is 7The GCF is 7.

The GCF is 7.

### What is the greatest common factor of 21 35 and 63?

The GCF of 21, 35, and 63 is 7.

### What is the greatest common factor of 21 35?

21 = (3)(7)35 = (5)(7)7

The GCF is 1.

The GCF is 7.

The GCF is 7.

### What is the common factor of 21 35 49?

The greatest common factor of 7, 35 and 49 is 7.

### What is the greatest common factor of 35 and 125?

The greatest common factor of 35 and 125 is 5.The greatest common factor of the numbers 35 and 125 is 5.

The GCF is 7.