find the square root of 1521
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1521 / 3 = 507
507 / 3 = 169
169 is 13 * 13 (it helps to know some of these)
So, the square root of 1521 is 3 * 13 (because there are two of each of these prime factors), which is 39.
507 / 3 = 169
169 is 13 * 13 (it helps to know some of these)
So, the square root of 1521 is 3 * 13 (because there are two of each of these prime factors), which is 39.
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