225 and Level 6

• 225 is a composite number and a perfect square.
• Prime factorization: 225 = 3 x 3 x 5 x 5, which can be written 225 = (3^2) x (5^2)
• The exponents in the prime factorization are 2 and 2.
• Factors of 225: 1, 3, 5, 9, 15, 25, 45, 75, 225.
• Factor pairs: 225 = 1 x 225, 3 x 75, 5 x 45, 9 x 25, or 15 x 15.

2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 + 28 + 30 = 240; that’s the sum of the first 15 even numbers.

256 and Level 4

• 256 is a composite number.
• Prime factorization: 256 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2, which can be written 256 = 2⁸
• The exponent in the prime factorization is 8.
• Factors of 256: 1, 2, 4, 8, 16, 32, 64, 128, 256.
• Factor pairs: 256 = 1 x 256, 2 x 128, 4 x 64, 8 x 32, or 16 x 16.
• 256 is a perfect square.

16 is a perfect square. Because 4 * 4 = 16.

Radical 16 or radical table (几部), meaning small table, is one of 23 of the 214 Kangxi radicals that are composed of 2 strokes….Radical 16.

The square root of 16 is a rational number. The square root of 16 is 4, an integer.

Then, we take that value and multiply by itself 3 times. So essentially, square root of 8 to the power of 3 = (2.828 x 2.828 x 2.828) = 22.627….Square root Table From 1 to 15.

The square root of 8 is expressed as √8 in the radical form and as (8)½ or (8)0.5 in the exponent form. The square root of 8 rounded up to 8 decimal places is 2.82842712. It is the positive solution of the equation x2 = 8….Square Root of 8.