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# How many prime factors are there in 1-420?

Updated: 4/28/2022

Wiki User

9y ago

There are 82 prime numbers between 1 and 420.

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9y ago

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Q: How many prime factors are there in 1-420?
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### What is the greatest common factor of 1420?

There is neither a greatest common factor nor common factors of a single number, such as 1420 because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 1420 are 1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, and 1420. The prime factors of 1420 are 2, 2, 5, and 71. Examples: The greatest common factor of 32 and 1420 is 4. The greatest common factor of 213 and 1420 is 71. The greatest common factor of 580 and 1420 is 20.

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