38 x 40 = 1520
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33 x 38
The HCF of 38 and 40 is 2
38
Expressed as a decimal fraction, 38/40 = 0.95
The factorial of a number n, denoted as n!, is the product of all positive integers up to n. In this case, the factorial of 40 is calculated as 40 × 39 × 38 × ... × 2 × 1. This results in an extremely large number, specifically 815915283247897734345611269596115894272000000000.