Posted by **gary** on Sunday, September 12, 2010 at 10:54pm.

what is my number?

Clue 1 My number is a multiple of 5,but it does not end in 5.

Clue 2 The prime factorization of my number is a string of three numbers.

Clue 3 Two of the numbers in the prime factorizations are the same.

Clue 4 My number is greater than the seventh square number.

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**MathMate**, Sunday, September 12, 2010 at 11:06pm
what is my number?

Clue 1 My number is a multiple of 5,but it does not end in 5.

- Multiples of 5 end in "5" and which other digit?

- Can you identify 2 prime factors if the number ends in this digit?

Clue 2 The prime factorization of my number is a string of three numbers.

- From clue 1, we have already found two of the three prime factors. We need the third one.

Clue 3 Two of the numbers in the prime factorizations are the same.

- Therefore the third one must be a duplicate of one of the other two.

- that leaves us two choices.

Clue 4 My number is greater than the seventh square number.

- out of the two choices, which one will make a number greater than 7²?

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**Anonymous**, Thursday, September 16, 2010 at 9:46pm
kjljjjudeljh

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**julian**, Sunday, September 23, 2012 at 1:51pm
30

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**boy**, Thursday, September 12, 2013 at 11:00pm
i dont no

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**Kissy Marchizae-feurw**, Monday, September 30, 2013 at 6:13pm
the answer is 30 because since there is 3 factors of 30=3,5,10 and it does not end in a five and it is a multiple of 5

ps. this is correct im a math teacher for simmons knights you will get an A+

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**Anonymous**, Sunday, October 20, 2013 at 4:22pm
50

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**Soraya**, Wednesday, November 20, 2013 at 7:55pm
How can it be 30 if it is greater than 49?

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**Mangle**, Monday, August 31, 2015 at 10:40pm
Guys it's 50 because the prime factorization is 5*5*2=50 it fits all the clues.

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