The prime factorization of 14 is 2 x 7.
The easiest way to do this is to split the numbers down into their prime factors: 14 = 2x7 20 = 2x2x5 The next step is to spot any common prime factors. In this case both numbers have a 2 as a prime factor. Therefore, the HCF of 14 and 20 is 2.
You is called a prime number!You is called a prime number!You is called a prime number!You is called 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.
101 is a prime number. The only factor of 101 is itself and 1.prime
It's a question of how "prime" is defined. Mathematicians have chosen not to include 1 in their set of prime numbers, possibly because they feel it makes things easier.Every positive integer can be written as a product of prime numbers (prime factorization). In fact, every positive integer has only one prime factorization. (Reordering the primes doesn't count, e.g. 2x3x3 is the same as 3x2x3.) This would no longer be true if 1 was a prime number. For instance: 14 = 2x7 = 1x2x7 = 1x1x2x7 = 1x1x1x2x7. Every positive integer would have infinitely many prime factorizations. You's have to rewrite the theorem to say "...only one prime factorization WITHOUT A 1", which would be more awkward.There are probably more examples out there, but I can't think of any good ones at the moment.
The prime factorization of 94 is 2 x 47.
Answer: 2 x 5 x 29
3x3x5
140 has the prime factorization of 5 2 2 and 7.
11 is already prime; no factorization required.
25 = 5*5
125 = 5*5*5
5 * 2 *2 = 20
The prime factors of 75 are 1, 3, and 5.
99 = 3 x 3 x 11
2 x 2 x 7 = 28
The prime factorization of 64 is 2x2x2x2x2x2 or 26. The prime factorization of 8 is 2x2x2 or 23.