9 is a square number and is a factor of 63
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We need to know what number the square is a factor of.
Well, isn't that just a happy little question! The largest square factor of 20 is 4. You see, 4 times 4 equals 16, which is the largest square number that can evenly divide into 20. Just imagine that 4 fitting perfectly into 20, creating a beautiful harmony of numbers on your canvas.
There are 3 factor pairs of 63: 63 = 1 x 63 63 = 3 x 21 63 = 7 x 9
The greatest common factor (GCF) of two numbers is the largest number that divides evenly into both numbers. To find the GCF of 28 and 63, we need to list the factors of each number. The factors of 28 are 1, 2, 4, 7, 14, and 28, while the factors of 63 are 1, 3, 7, 9, 21, and 63. The largest number that appears in both lists is 7, so the GCF of 28 and 63 is 7.