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what are prime factors of 42 a.2x3x5 b.2x2x3x3 c.2x2x3x5 d.2x2x3x7​ -

what are prime factors of 42 a.2x3x5 b.2x2x3x3 c.2x2x3x5 d.2x2x3x7​ -

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Guest [Entry]

"Answer:

None of the above, unless D was a typo. See below for the reason.

Step-by-step explanation:

42 ÷ 2 = 21

21 ÷ 3 = 7

2x3x7 = 42

A = 30

B = 36

C = 60

D = 84"