2 x 3 x 5 = 30
2 x 3 x 7 = 42
Prime factorization is one of the ways you find the HCF.
21 isn't prime. The prime factorization of 42 is 2 x 3 x 7.
2 x 3 x 5 = 302 x 23 = 46
Example: 30 and 42 30 15,2 5,3,2 42 21,2 7,3,2 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM
Example: 30 and 42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the common factors. 2 x 3 = 6, the GCF
Take 30/42, for example. The prime factorization of the numerator (30) is 2 x 3 x 5. The prime factorization of the denominator (42) is 2 x 3 x 7. This will help you find the GCF or the LCM.
The tree finds the prime factorization. The prime factorization finds the GCF. Example: 30 and 42. 30 15,2 5,3,2 42 21,2 7,3,2 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the common factors. 2 x 3 = 6, the GCF
30 and 42
Prime factorization is one of the ways you find the HCF.
42 = 2 × 3 × 7
42 = 2 × 3 × 7
It is: 2*3*7 = 42
No. Prime factorization is the method of expressing a number as the product of prime numbers. So, Prime factorization of 42 = 2x3x7
No.
The factor tree finds the prime factorization. The prime factorization finds the LCM. Example: 30 and 42 Factor them. 30 15,2 5,3,2 42 21,2 7,3,2 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the highest amount of each factor. 2 x 3 x 5 x 7 = 210, the LCM
In actual fact, the prime factorization of 42 is not 21 x 2, as 21 is not a prime number. The complete prime factorization of 42 is 2 x 3 x 7.
42 = 2 × 3 × 7