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643 is a Prime number. Its only positive integer factors are itself and 1.

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14y ago

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Is 643 prime or composite?

prime


What is the positive difference between the number of distinct prime factors of 15 2 and the number of distinct prime factors of 64 3?

Oh, dude, the positive difference between the number of distinct prime factors of 15 squared (225) and 64 cubed (262,144) is like 4. Prime factors are like those VIP numbers that can't be divided by anything except 1 and themselves. So, 225 has 2 distinct prime factors (3 and 5), and 262,144 has 1 distinct prime factor (2). Subtract 1 from 2, and you get 1. Wow, math can be fun, right?


What is you called when the prime factorization of a number is 1 and itself?

You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!


What is a prime number times a prime number?

A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.


Is 43 prime or composite?

43 is not evenly divisible by any prime lower than itself - so it is prime43 ÷ 2 = 21 + 143 ÷ 3 = 14 + 143 ÷ 5 = 8 + 343 ÷ 7 = 6 + 143 ÷ 11 = 3 + 1043 ÷ 13 = 3 + 443 ÷ 17 = 2 + 943 ÷ 19 = 2 + 543 ÷ 23 = 1 + 2043 ÷ 29 = 1 + 1443 ÷ 31 = 1 + 1243 ÷ 37 = 1 + 643 ÷ 41 = 1 + 243 is a Prime Number.It is prime.Prime Number