Since 62 is a composite number and not prime you can check for divisibility by 31 and 2. To check for divisibility by 31 take the last digit of your number and multiply it by four, then add the result to your original number, deleting the last number
ex. 624 to test would be 62 + (4*4) = 78
you continue in this fashion until a multiple of 31 and 2 are found. If they are not than it is not a multiple of 62
sources: I am a human calculator, experience
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Divisibility rules have been developed and refined by mathematicians over the centuries. It is difficult to attribute the invention of divisibility rules to a specific individual. However, some early rules can be traced back to ancient civilizations like the Egyptians, Babylonians, and Greeks. These rules were further expanded upon and formalized by various mathematicians throughout history.
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