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To prove that 61 is a prime number.
3 with remainder 7.
Half of 61 is 30.5. To find half of a number, you divide it by 2. In this case, 61 divided by 2 equals 30.5. This is because half of a number represents splitting it into two equal parts.
61 because you add 33, 55, and 100 to get 183. Then you divide it by how many numbers there are, 3. So that's how you get 61.
To convert a percentage to a decimal divide by 100: 61/3 % = 61/3 ÷ 100 = 6.333... ÷ 100 ≈ 0.0633