Once you multiply a prime by any number other than 1, it becomes composite.
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The only integers are: 1 times 43 = 43 which is a prime number
None - its a prime number and can only be times by itself and one.
yes it is the only way to make it is 1 times 7875 add up the didgets and it is 37 and 37 is a prime number
None. Prime numbers can only be divided by 1 and themselves, so if a prime number is divisible by 371, it isn't a prime number. 53 times 7 equals 371, so 371 cannot be a prime number either.
yes 2173 is a prime number because the ending ends in 3 and you can only times 1 and 3 together to get 3 and a prime number is if 2 numbes can times 1 whole number.Actually 2173 is not a prime number. It can be divided by 1, 41, 53, or 2173. Moreover just because a number ends in 3 doesn't make it a prime number.