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GMAT Tuesdays with Kevin: Problem Solving – Co-Prime

Hello! 🙂

This week, we’re tackling the GMAT math through a question that a student brought up. At first, the problem seems like a plug-and-chug kind of problem. But with the help of a crucial insight, this problem can be solved much quicker! Watch the video to find out what that insight is. 🙂

Here’s a still of the final board work:
Problem Solving - Co-prime

Feel free to leave me any questions or comments you have below!

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4 Responses to GMAT Tuesdays with Kevin: Problem Solving – Co-Prime

  1. Imran Malik October 16, 2018 at 1:22 am #

    please advise as to why is 1 a multiple of all of the 3 primes?

    • Magoosh Test Prep Expert
      Magoosh Test Prep Expert October 19, 2018 at 7:12 am #

      Hi Imran,

      1 is not a multiple of these values, but it is a factor of these values. Does that clarification make sense? 🙂

  2. Marie September 9, 2014 at 1:16 pm #

    I LOVE watching Tuesdays with Kevin. You make learning fun! Thank you for including a math problem this week. I was in the process of learning about multiples so this problem solidified my learning. THANK YOU Kevin and Magoosh!

    • Kevin Rocci
      Kevin September 9, 2014 at 1:45 pm #

      Hi Marie! 😀 Thank you for your kind words! I am so happy to hear that this was a timely video for you! 😀

      Happy Studying!

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