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Which of the following ( 15, 20, 30, 57 ) is the product of exactly three different prime numbers?
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Which of the following ( 15, 20, 30, 57 ) is the product of exactly three different prime numbers?

User Ankitr
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1 Answer

8 votes

Answer:

30=2*3*5, so it's 30

Explanation:

15=3*5, so it's not 15

20=2*2*5, so it's not 20

30=2*3*5, so it's 30

57=19*3, so it's not 57

User Mayi
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