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# What it the prime factor of 840?

Updated: 8/30/2023

Wiki User

7y ago

Best Answer

Prime factors are 2, 2, 2, 3, 5, 7

Other factors are combinations of the primes, i.e.

2 x 2 = 4

2 x 3 = 6

2 x 2 x 2 = 8

2 x 5 = 10

2 x 2 x 3 = 12

2 x 7 = 14

3 x 5 = 15

2 x 2 x 5 = 20

3 x 7 = 21

2 x 2 x 2 x 3 = 24

2 x 2 x 7 = 28

2 x 3 x 5 = 30

5 x 7 = 35

2 x 2 x 2 x 5 = 40

2 x 3 x 7 = 42

2 x 2 x 2 x 7 = 56

2 x 2 x 3 x 5 = 60

2 x 5 x 7 = 70

2 x 2 x 3 x 7 = 84

3 x 5 x 7 = 105

2 x 2 x 2 x 3 x 5 = 120

2 x 2 x 5 x 7 = 140

2 x 2 x 2 x 3 x 7 = 168

2 x 3 x 5 x 7 = 210

2 x 2 x 2 x 5 x 7 = 280

2 x 2 x 3 x 5 x 7 = 420

Wiki User

14y ago
This answer is:
More answers

Wiki User

11y ago

2 x 2 x 210

4 x 2 x 105

8 x 3 x 35

24 x 5 x 7

56 x 3 x 5

60 x 2 x 7

6 x 10 x 14

3 x 10 x 28

5 x 21 x 8

7 x 10 x 12

10 x 21 x 4

and many more

This answer is:

Wiki User

12y ago

To find the factors of 840, divide 840 by all numbers less than the square root of 840 that do not leave a remainder. This process gives factor pairs consisting of the divisor and the quotient.

840/1 = 840; factor pair is 1 and 840

840/2 = 420; factor pair is 2 and 420

840/3 = 280; factor pair is 3 and 280

840/4 = 210; factor pair is 4 and 210

840/5 = 168; factor pair is 5 and 168

840/6 = 140; factor pair is 6 and 140

840/7 = 120; factor pair is 7 and 120

840/8 = 105; factor pair is 8 and 105

840/10 = 84; factor pair is 10 and 84

840/12 = 70; factor pair is 12 and 70

840/14 = 60; factor pair is 14 and 60

840/15 = 56; factor pair is 15 and 56

840/20 = 42; factor pair is 20 and 42

840/21 = 40; factor pair is 21 and 40

840/24 = 35; factor pair is 24 and 35

840/28 = 30; factor pair is 28 and 30

The factor pairs can then be arranged in ascending numerical order.

The factors of 840 are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, and 840.

This answer is:

Wiki User

11y ago

5 x 7 x 24

3 x 7 x 40

4 x 7 x 30

This answer is:

Wiki User

8y ago

(1, 840)

(2, 420)

(3, 280)

(4, 210)

(5, 168)

(6, 140)

(7, 120)

(8, 105)

This answer is:

Wiki User

7y ago

2 x 2 x 2 x 3 x 5 x 7 = 840

This answer is:

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Related questions

### What are the longest factor string for 840 and explain why?

The longest factor string for 840 is its prime factorization because prime factors can't be broken down any further.

### Is 32 a factor of 840?

32 is not a factor of 840.

### How do you know when you have found the longest factor string for 840?

You will know because all of the numbers are prime.

### Is 7 a factor of 840?

actually 7 is a factor of 840, because when you divide 7 into 840 you get 120 with no remainders therefore making it a factor of 840.🤡

### How do find the prime factorization of 840?

Find one factor, divide by it to get the other factor. Continue separating each of the factors into smaller factors, until you only have prime numbers. For example, 840 = 2 x 420. Now continue finding smaller factors for 420.

### What was the factor strings up to six of 840?

Stings with four factor that make 840

### What are Five factor strings for 840?

2 x 420 3 x 280 4 x 210 5 x 168 6 x 140

### How does 840 factor into prime numbers?

840 = 2 x 2 x 2 x 3 x 5 x 7 OR 23 x 3 x 5 x 7

### What is the prime factors for 840?

The prime factors are: 2,3,5,7

### What is the greatest common factor of 320 and 840?

The GCF of 320 and 840 is 40.

### What is the greatest common factor of 280 and 840?

The GCF is 40. The LCM is 6720. The GCD is infinite.

Yes