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# How many different prime factors does the number 630 have

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Senior Manager
Joined: 10 Dec 2004
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Kudos [?]: 52 [0], given: 0

How many different prime factors does the number 630 have [#permalink]  24 Jan 2005, 13:04
How many different prime factors does the number 630 have
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Joined: 28 Dec 2004
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Location: New York City
Schools: Wharton'11 HBS'12
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Kudos [?]: 181 [0], given: 2

4. distinct prime factors, in all 5! 2,3,3,5,7

3, 5, 7, 2 are the distinct factors..
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Joined: 19 Nov 2004
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Location: SF Bay Area, USA
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Kudos [?]: 57 [0], given: 0

3x3x7x5x2

Distinct Prime factors 3,7,5,2 = 4
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