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How many prime numbers between 1 and 100 are factors of 168?
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14 Feb 2022, 10:09
14 Feb 2022, 10:09
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How many prime numbers between 1 and 100 are factors of 168?
A. One
B. Two
C. Three
D. Four
E. Five
A. One
B. Two
C. Three
D. Four
E. Five
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Re: How many prime numbers between 1 and 100 are factors of 168?
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14 Feb 2022, 10:28
14 Feb 2022, 10:28
1
Carcass wrote:
How many prime numbers between 1 and 100 are factors of 168?
A. One
B. Two
C. Three
D. Four
E. Five
A. One
B. Two
C. Three
D. Four
E. Five
This is a job for prime factorization.
168 = (2)(2)(2)(3)(7)
The prime factors of 168 are 2, 3 and 7
Answer: C
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Re: How many prime numbers between 1 and 100 are factors of 168?
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18 Jul 2022, 08:13
18 Jul 2022, 08:13
We need to find how many prime numbers between 1 and 100 are factors of 168
If you want to know what is a prime number then watch this video
Now, we can factorize 168 to get
168 = 8*21 = \(2^3\) * 3*7
Clearly, there are 3 prime numbers 2, 3 and 7 which are between 1 and 100 and are factors of 168
So, Answer will be C.
Hope it helps!
Watch the following video to learn Basics of Prime Numbers
Watch the following video to learn How to find Prime Numbers from 1 to 100
If you want to know what is a prime number then watch this video
Now, we can factorize 168 to get
168 = 8*21 = \(2^3\) * 3*7
Clearly, there are 3 prime numbers 2, 3 and 7 which are between 1 and 100 and are factors of 168
So, Answer will be C.
Hope it helps!
Watch the following video to learn Basics of Prime Numbers
Watch the following video to learn How to find Prime Numbers from 1 to 100
