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i would have to say 20 i would say

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Q: What is the highest common factor of 120 and 420?
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What is the highest common factor of 420 and 294?

The highest or greatest common factor of 420 and 294 is 42.


What is the greatest common factor of 420 and 120?

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What is the highest common factor of 420 and 308?

The GCF is 28.


What is the highest common factor of 360 and 420?

The GCF is 60.


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The GCF is 70.


What is the HCF and LCM of 10 and 420?

divisors of 10 are 1,2,5 and 10, so highest number that can be divide 10 is 10,10 is also a factor of 420 Hence 10 is the highest common factor of 10 and 420. least multiplier of 420 is 420, also 420 is multiplier of 10 hence LCM is 420


What is the greatest common factor 420 and 2310?

The greatest common factor of 420 , 2310 = 210


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The greatest common factor of 196 and 420 is 28.


What is the greatest common factor of 420 and 504?

Greatest common factor of 420 and 504 is 84.


What is the greatest common factor of 420 and 294?

The greatest common factor of 294 and 420 is 42.


What is the greatest common factor of 420 and 2646?

The greatest common factor of the numbers '420' and '2646' is '42'.


What is the highest prime factor of 420?

To find the highest prime factor of 420, we first need to factorize 420 into its prime factors. 420 can be expressed as 2^2 * 3 * 5 * 7. The highest prime factor is 7. Prime factors are numbers that can only be divided by 1 and themselves without leaving a remainder, and the highest prime factor is the largest prime number that can divide the original number.