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What is the largest prime factor of 42?
The largest prime factor of 42 is 7
What is the largest prime factor of 100?
5 is the largest prime factor of 100. Prime factors of 100 are 2 x 2 x 5 x 5
Is the number 38 prime or composite?
38 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
How did Euclid prove there is no largest prime?
The proof that there is no largest prime:Assume that there are a finite number of primes for the sake of contradiction. Then, there should be a number P that equals p1p2p3...pn+1. P is either prime or not prime (composite). If it is prime, we just show that P is larger than the largest prime in the list. If it's not prime, it must be composite. Composite always has at least one factor that is prime, but since P is not divisible by any prime in the list, the unknown prime factor(s) must be something not in the list, this also shows that there is a prime larger than the largest prime in the list. Both cases show that no matter how large a list of prime numbers, there will be always at least one larger prime outside of that list.
Is 36 a prime factor?
No. 36 is composite and so it cannot be a prime factor.
