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Williamsburg High School for Architecture and Design

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You are here: Home / Teacher Posts / Daily Extra Credit: 10/7

Daily Extra Credit: 10/7

October 7, 2013 By Ms. Terraferma

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Question #7

You are looking for a two digit number

The second digit is twice the first digit.

The number has 9 divisors.

Twice the number is a two digit number.

The number plus 1 is a prime number.

What is the number?

Email the number to terraferma@whsad.org and include Your Name and Question #7 in the subject line.

 

Filed Under: Teacher Posts Tagged With: extra credit, logic, number sense

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About Ms. Terraferma

Ms. Terraferma is the 10th and 12th grade guidance counselor. She can be reached at 718-388-1260 x3311 or terraferma@whsad.org.

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