Question

Use a factor tree to find the prime factors of 490. Then write the prime factorization of 490.

Answer 1

Let's use the factor tree

490

2*245

2*5*49

2*5*7*7

2,5,7 these are the prime factors using the factor tree

Then the prime factorization is 2¹ * 5 ¹ * 7²:

2*5*7*7 = 2¹ * 5 ¹ * 7²