2 x 2 x 3 x a
The prime factorization for 245 is 7^2 x 5
Prime factorization is dividing a number by prime numbers (starting with 2) until you reach a final, last number (has to be a prime number. So 670 = 2 x 5 x 67. In this case there is no repetition of any number, thus there is no need for exponents.
The prime factorization of 33 is: 3 x 11No exponents are necessary in this case.
22 x 52 x 13 = 1300
To find the prime factorization of a number, it helps to divide it by any obvious factors. In this case, 156 is even so we can divide by 2. Do this and we get 78, which is also even. Divide by 2 again and we get 39, which is divisible by 3. Do that and we get 13 which is prime. Thus the prime factorization of 156 is 2x2x3x13. If we want to use exponents this can be written as 22x3x13
Write the prime factorization with exponents. Add 1 to each exponent. (Numbers without exponents actually have the exponent 1.) Multiply them together. That will be the number of factors.
No. Every composite number has one unique prime factorization. You can write it with or without exponents, but it's still the same prime factorization.
19 is a prime number in its own right and needs no exponents
11 is a prime number in its own right and needs no exponents
11 is already prime. No factorization or exponents needed.
2^5
11 is a prime number.
41 is a prime number.
47 is a prime number.
The prime factorization for 245 is 7^2 x 5
19 is a prime number so the factorization is 1 x 19
3^2 x 5