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How many integers less than 50 have exactly 2 distinct prime factors?
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How many integers less than 50 have exactly 2 distinct prime factors?
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Mar 21, 2019
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How many integers less than 50 have exactly 2 distinct prime factors?
Mathematics
high-school
TonyParker
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1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47
So 16 integers.
Scott Mermelstein
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Mar 26, 2019
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Scott Mermelstein
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