math
posted by gary on .
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.

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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30

i don't no

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+ 
50

How can it be 30 if it is greater than 49?

Guys it's 50 because the prime factorization is 5*5*2=50 it fits all the clues.

50

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