All composite numbers can be expressed as unique products of prime numbers. This is accomplished by dividing the original number and its factors by prime numbers until all the factors are prime. A factor tree can help you visualize this.
Example: 210
210 Divide by two.
105,2 Divide by three.
35,3,2 Divide by five.
7,5,3,2 Stop. All the factors are prime.
2 x 3 x 5 x 7 = 210
That's the prime factorization of 210.
The prime factorization of 212 is 2 x 2 x 53. 16 is not a factor of 212.
As a product of its prime factors: 3*3*3*5*7 = 945
It is a factorization. It's not a prime factorization because 93 isn't prime.
The GCF of 14, 31, 39, and 56 is 1. One way to solve the problem is to notice that 31 is prime, and can't possibly be a factor of 14, which is smaller.If you prefer, you can write the prime factorization of each number in the set and find the GCF:The prime factorization of 14 is 2*7The prime factorization of 31 is 31 (1*31)The prime factorization of 39 is 3*39The prime factorization of 56 is 2*2*2*7So the GCF is 1.
310 Factorization: 2*5*31
295 = 5 × 59
3 x 5 = 15
280 140,2 70,2,2 35,2,2,2 7,5,2,2,2
You can eliminate the fractions before proceeding to solve the equation to allow for easy factorization.
The prime factorization of 212 is 2 x 2 x 53. 16 is not a factor of 212.
2 x 2 x 5 x 11
I think you mean that the prime factorization is 2 times 3 times 5. To solve, just perform the multiplication: 2x3x5=30
21 3,7 3 x 7 = 21
As a product of its prime factors: 3*3*3*5*7 = 945
Prime factors of 38: 2 and 19 so Divide by 2 you get 19. Ans: 2x19
There are many calculators online that will deliver factorizations instantaneously. You won't understand the process, but it's a shortcut.
In general, you cannot. If the number in scientific notation has not been rounded then express it is normal form and proceed from there.