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Original
2026-01-01
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2026-02-28
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<p>153 Learners</p>
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<p>187 Learners</p>
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<p>Last updated on<strong>October 8, 2025</strong></p>
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<p>Last updated on<strong>October 8, 2025</strong></p>
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<p>Factorial is the process of taking a number and multiplying it by all the lesser, natural numbers. The factorial of a number n is denoted by n!. In this topic, we will learn about the factorial of 1.</p>
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<p>Factorial is the process of taking a number and multiplying it by all the lesser, natural numbers. The factorial of a number n is denoted by n!. In this topic, we will learn about the factorial of 1.</p>
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<h2>What is the Factorial of 1?</h2>
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<h2>What is the Factorial of 1?</h2>
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<p>We write the<a>factorial</a>of a<a>number</a>using an exclamation mark (!) after it.</p>
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<p>We write the<a>factorial</a>of a<a>number</a>using an exclamation mark (!) after it.</p>
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<p>If n is a<a>natural number</a><a>greater than</a>or equal to 1, then: n! = n × (n - 1) × (n - 2) × (n - 3) × … × 3 × 2 × 1</p>
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<p>If n is a<a>natural number</a><a>greater than</a>or equal to 1, then: n! = n × (n - 1) × (n - 2) × (n - 3) × … × 3 × 2 × 1</p>
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<p>To find the factorial of 1, we write it as: 1! = 1</p>
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<p>To find the factorial of 1, we write it as: 1! = 1</p>
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<p>Therefore, the factorial of 1 is 1.</p>
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<p>Therefore, the factorial of 1 is 1.</p>
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<h2>Important Glossaries of Factorial of 1</h2>
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<h2>Important Glossaries of Factorial of 1</h2>
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<ul><li><strong>Factorial:</strong>The way of multiplying all the natural numbers smaller than the original number is known as factorial, and it is expressed with an exclamation mark (!).</li>
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<ul><li><strong>Factorial:</strong>The way of multiplying all the natural numbers smaller than the original number is known as factorial, and it is expressed with an exclamation mark (!).</li>
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</ul><ul><li><strong>Natural numbers:</strong>Counting numbers starting from 1, 2, 3, and so on.</li>
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</ul><ul><li><strong>Natural numbers:</strong>Counting numbers starting from 1, 2, 3, and so on.</li>
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</ul><ul><li><strong>Identity element:</strong>An element that, when used in an operation with another number, leaves the other number unchanged. For multiplication, the identity element is 1.</li>
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</ul><ul><li><strong>Identity element:</strong>An element that, when used in an operation with another number, leaves the other number unchanged. For multiplication, the identity element is 1.</li>
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</ul><ul><li><strong>Multiplicative identity:</strong>Another term for the identity element in multiplication, which is 1.</li>
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</ul><ul><li><strong>Multiplicative identity:</strong>Another term for the identity element in multiplication, which is 1.</li>
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</ul><ul><li><strong>Exclamation mark:</strong>A symbol used to denote factorial in mathematics.</li>
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</ul><ul><li><strong>Exclamation mark:</strong>A symbol used to denote factorial in mathematics.</li>
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</ul><h2>Jaskaran Singh Saluja</h2>
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</ul><h2>Download Worksheets</h2>
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<h2>Jaskaran Singh Saluja</h2>
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<h3>About the Author</h3>
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<h3>About the Author</h3>
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<p>Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.</p>
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<p>Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.</p>
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<h3>Fun Fact</h3>
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<h3>Fun Fact</h3>
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<p>: He loves to play the quiz with kids through algebra to make kids love it.</p>
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<p>: He loves to play the quiz with kids through algebra to make kids love it.</p>