21 isn't prime. The prime factorization of 42 is 2 x 3 x 7.
Prime factorization is one of the ways you find the HCF.
The prime factors of 42 are 2, 3 and 7.
The prime factorisation of 42 is 2*3*7.
We're not sure what you mean by the lmm. Generally, people ask for the LCM (least common multiple) but to find that, you need at least two numbers to compare. The prime factorization of 42 is 2 x 3 x 7.
the LCM of 42 and 126 using a prime factorization is 2 times 2 times 3
It is: 126
42=2^3*7
2 x 2 x 5 = 20 2 x 3 x 7 = 42 The GCF is 2.
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 GCF of 42 and 81 is 3.The prime factorization of 42 is 2*3*7The prime factorization of 81 is 3*3*3*3Their only and greatest common factor is 3.
Example: 30 and 42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the factors in common. 2 x 3 = 6, the GCF
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
Method of prime factorization: Expressing each number as the product of prime numbers.P.F. of 16 = 2x2x2x2P.F. of 42 = 2x3x7G.C.F.(16, 42) = 2
It is: 32*25 = 288
378
No. Prime factorization is the method of expressing a number as the product of prime numbers. So, Prime factorization of 42 = 2x3x7