Q: What is the largest square factor of 20?

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9 is a square number and is a factor of 63

We need to know what number the square is a factor of.

When finding the factors of 841, the largest number you would test is 29. No prime number higher than 29 could be a factor because the square of that number would exceed 841.

21 is the largest factor of 21

36 is the largest factor of 36,

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The largest perfect square factor of 48 is 16.

The largest square factor of 557 is 1 because 557 is a prime number

9 is a square number and is a factor of 63

We need to know what number the square is a factor of.

10 is the largest common factor

Since 243 = 35, the largest square factor is 34 = 81.

It is: 36 because 6*6 = 36

No, 5 is.

49

4

36

36