Factor trees and factor rainbows.
A factor of a composite number need not be a prime number, some factors are themselves composite. Prime factorisation is continuing to factorise each factor unless it is a prime. For example, start with 30. 6 goes into 30 so finding a factor is satisfied by simply identifying 6 as a factor of 30. Now 30 = 5*6 where 5 is a prime, but 6 is not so we need to factorise 6. 6 = 2*3 and therefore, 30 = 5*2*3 = 2*3*5 The last is the prime factorisation of 30.
2 84 3 12 3 4 2 2
46 2,23 2 x 23 = 46
You start finding one factor. Divide by that factor, to get another factor. Continue looking for smaller factors, until you only have prime numbers. For numbers up to 120, it is enough to check the prime factors 2, 3, 5, and 7.
No. The smallest prime factor is 2.
Notice whether the number is odd or even. If it's even, the first prime factor is 2.
The prime factor of 2 is 2.
Prime factorization is the finding which prime number multiply to get to make the original number. Factors of 4: 1, 2, 4 Prime Factorization: 2 2 x 2 = 4
A factor of a composite number need not be a prime number, some factors are themselves composite. Prime factorisation is continuing to factorise each factor unless it is a prime. For example, start with 30. 6 goes into 30 so finding a factor is satisfied by simply identifying 6 as a factor of 30. Now 30 = 5*6 where 5 is a prime, but 6 is not so we need to factorise 6. 6 = 2*3 and therefore, 30 = 5*2*3 = 2*3*5 The last is the prime factorisation of 30.
2 84 3 12 3 4 2 2
46 / \ 2 x 23 The prime factorization for 46 is (2 x 23).
Not really. A factor string is a multiplication sentence. A factor tree is a way of notating the process of finding the prime factorization of a given number. End result: 4 x 9 can be a factor string for 36, but can't be a prime factorization. The prime factorization of 36 is 2 x 2 x 3 x 3.
Yes, 2 is a prime factor of 92. Since 2 is a prime number, it is a prime factor of all even numbers.
46 2,23 2 x 23 = 46
2 is a prime number because its only factors are one and itself. Since 2 is a prime number, if it is a factor of your number, it is a prime factor.
You start finding one factor. Divide by that factor, to get another factor. Continue looking for smaller factors, until you only have prime numbers. For numbers up to 120, it is enough to check the prime factors 2, 3, 5, and 7.
Factors are numbers you can multiply together to get another number. A prime number can be divided evenly by 1 and itself. 63: 1, 3, 7, 9, 21, 63 The largest prime factor of 63 is 7.