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31 December, 02:58

What is the smallest 3-digit number that has 2, 3, and 7 among its prime factors?

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  1. 31 December, 03:10
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    Answer: 126

    Step-by-step explanation: You would just find the LCM (2, 3, 7) and get 42. But since you need a 3-digit number, list the multiples of 42, like so: 42, 84, 126, 168, 210 ...

    As you can see, 126 is the smallest 3-digit number that has 2, 3, and 7 among its prime factors.
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