Is 74638020 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 74 638 020 is not a prime number.
For example, 74 638 020 can be divided by 2: 74 638 020 / 2 = 37 319 010.
Actually, one can immediately see that 74 638 020 cannot be prime, because 5 is one of its divisors: indeed, a number ending with 0 or 5 has necessarily 5 among its divisors. The last digit of 74 638 020 is 0, so it is divisible by 5 and is therefore not prime.
For 74 638 020 to be a prime number, it would have been required that 74 638 020 has only two divisors, i.e., itself and 1.
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