What are the factor strings of 840?

Answer 1

2 x 420

3 x 280

4 x 210

5 x 168

6 x 140

7 x 120

8 x 105

10 x 84

12 x 70

14 x 60

15 x 56

20 x 24

21 x 40

24 x 35

28 x 30

2 x 2 x 210

2 x 3 x 140

2 x 5 x 84

2 x 7 x 60

3 x 5 x 56

3 x 7 x 40

5 x 7 x 24

2 x 2 x 2 x 105

2 x 2 x 3 x 70

2 x 2 x 5 x 42

2 x 2 x 7 x 30

2 x 3 x 5 x 28

2 x 3 x 7 x 20

3 x 5 x 7 x 8

2 x 2 x 2 x 3 x 35

2 x 2 x 2 x 5 x 21

2 x 2 x 2 x 7 x 15

2 x 2 x 3 x 5 x 14

2 x 2 x 3 x 7 x 10

2 x 3 x 4 x 5 x 7

2 x 2 x 2 x 3 x 5 x 7

Answer 2

The factor strings of 840 are the combinations of prime factors that multiply together to equal 840. The prime factorization of 840 is 2^3 * 3 * 5 * 7. Therefore, the factor strings of 840 are 2 * 2 * 2 * 3 * 5 * 7, 2 * 2 * 2 * 3 * 35, 2 * 2 * 2 * 15 * 7, and so on. Each factor string represents a unique combination of prime factors that multiply to give the original number, 840.

Answer 3

40