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Anonymous
Try it. Divide 63 by 7, for example with a calculator - if you get only zeroes after the decimal point, then it is.
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The LCM is: 63
63
63/9 = 7 and 63/7 = 9 So, yes they factors of 63.
63/9 = 7
Yes, 7 is a factor of 63. The factors of 63 are 1, 3, 7, 9, 21, and 63.