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Original
2026-01-01
Modified
2026-02-28
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<p>A prime number chart, created using the “Sieve of Eratosthenes” method, is a useful tool. Here are the steps:</p>
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<p>A prime number chart, created using the “Sieve of Eratosthenes” method, is a useful tool. Here are the steps:</p>
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<p><strong>Step 1:</strong>Write numbers from 1 to 100 in a 10x10 grid.</p>
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<p><strong>Step 1:</strong>Write numbers from 1 to 100 in a 10x10 grid.</p>
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<p><strong>Step 2:</strong>Leave out 1 as it is neither prime nor composite.</p>
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<p><strong>Step 2:</strong>Leave out 1 as it is neither prime nor composite.</p>
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<p><strong>Step 3:</strong>Mark 2 as a prime number and cross out all its<a>multiples</a>.</p>
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<p><strong>Step 3:</strong>Mark 2 as a prime number and cross out all its<a>multiples</a>.</p>
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<p><strong>Step 4:</strong>Mark 3 as a prime number and cross out all its multiples.</p>
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<p><strong>Step 4:</strong>Mark 3 as a prime number and cross out all its multiples.</p>
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<p><strong>Step 5:</strong>Continue this process for the next numbers until you complete the chart. The prime numbers up to 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.</p>
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<p><strong>Step 5:</strong>Continue this process for the next numbers until you complete the chart. The prime numbers up to 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.</p>
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<p>Since 302 is not in this list, it is a composite number.</p>
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<p>Since 302 is not in this list, it is a composite number.</p>
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