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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
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
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.
(1, 840)
(2, 420)
(3, 280)
(4, 210)
(5, 168)
(6, 140)
(7, 120)
(8, 105)
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What is the greatest common factor of 280 and 840?
The GCF is 40. The LCM is 6720. The GCD is infinite.
What is the prime factor of 840?
840- 2 2 2 5 7 3840- 2 3rd power, *5*7*3840- 2*2*2*5*7*3
Is 35 a prime or a factor?
35 can be a factor, but it is not prime.
Is 83 a prime factor or composite factor?
81 is not prime. Its prime factorization is 3x3x3x3.
What is the prime factor of 37?
There is no factorization. 37 is a prime number.37 is already prime. Its only prime factor is itself.
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.
Is 14 a factor of 840?
Yes
