400
200,2
100,2,2
50,2,2,2
25,2,2,2,2
5,5,2,2,2,2
402
201,2
67,3,2
2 x 3 x 67 = 402
The tree method is a diagram that does not display properly in this answer area.
3 is a prime number. Prime numbers don't have factor trees. The factors of 3 are 1 and 3.
40 20,2 10,2,2 5,2,2,2
Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors
The factors of 12 are: 1,2,3,4,6. The prime factors are the prime numbers in the factors. So: 1,2,3 are the prime factors of 12.
As a product of its prime factors: 3*5*31 = 465
The tree method is a diagram that does not display properly in this answer area.
396 198,2 99,2,2 33,3,2,2 11,3,3,2,2
470 Divide by two. 235,2 Divide by five. 47,5,2 Stop. All the factors are prime.
378 189,2 63,3,2 21,3,3,2 7,3,3,3,2
186 2, 93 2, 3, 31
3 is a prime number. Prime numbers don't have factor trees. The factors of 3 are 1 and 3.
145 5,29
44 22,2 11,2,2
an arithmetic tree an is formula using prime and composite number to express its factors.
The prime factors of 86 are 2 and 43
50 25,2 5,5,2