If n is the product of the integers from 1 to 8, inclusive, how many different prime factors greater than 1 does n have?
Four
Five
Seven
Eight
Six
A
Five
B
Six
C
Seven
D
Eight
E
Four
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Solution
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The correct option is A Four
If n is the product of the integers from 1 to 8, then its prime factors will be the prime numbers from 1 to 8. There are four prime numbers between 1 and 8:2,3,5, and 7.
The correct answer is A.
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