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Is 25 a multiple of a prime number?

Updated: 4/1/2020
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Yes. 25 is a multiple of 5 and the number 5 is a prime number.

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Q: Is 25 a multiple of a prime number?
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Is 25 a prime factorization?

25 is a composite number. The prime factorization of 25 is 5 x 5. 2 x 5 is the prime factorization of 10.


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LCM with prime factorization of 32 and 40?

The prime factorization of 32 is 2x2x2x2x2 or 25. The prime factorization of 40 is 2x2x2x5 or 23x5. For a number to be a multiple of a given number the multiple must have the entire prime factorization of that number in is. So a multiple of 32 must contain 2x2x2x2x2 or 25 . Likewise a multiple of 40 must contain 2x2x2x5 or 23x5. The least number that this could possible happen with must have 5 factors of 2 and one factor of 5 (the highest exponent on each individual prime factor). Thus the LCM is 2x2x2x2x2x5 or 25x5 Which is 160.


Can a multiple of a prime number be prime?

No. Let p1 be a prime number. Let p2 be a multiple of p1 such that p2 = p1 * k.  Then the factors of p2 are: 1, p1, k and p2. ==> p2 is not a prime number. Hence, a multiple of a prime number cannot be a prime number.


You are thinking of a number your number is a multiple of 25 your number is between 500 and 1000 the digits in your number sum 20 what is your number what are the prime factors of your number?

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