Given that $80x = 2^4 * 5^2 * 7$ , which of the following is not a factor of the integer x?

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Explanation

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Official Explanation

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The equation can be rewritten as

80x = (2^4) * (5^2) * (7)

. We can factor 80 as

80 = 16 * 5 = (2^4) * (5)

. Thus, we have [m]x…

Comments

DikshaOct 29, 2024

thank you taking time to upload it!

RenanJun 15

why is 14 not a factor though? 7 is a factor so shouldn't 14 be too?

SophiaJun 16

factor just means it divides evenly into x. x is 7, and 14 doesn't go into 7

AshJun 25

oh right, x itself is small so 14 is bigger than x. got it

What this question tests

Your understanding of divisibility rules, least common multiples, and greatest common factors.

Forgetting that 1 is not prime and that every integer divides 0.