Question

Elizabeth and Mini are playing a factor game. Elizabeth told Mimi that she was thinking of a mystery number that had 2, 7, and 9 as factors. she said there were nine other factors of her number. What are the other factors of her number? What is his mystery number?

Answer 1

The mystery number is 126

The factors are 1,2,3,6,7,9,14,18,21,42,63,126

Answer 2

The other factors are 1, 3, 6, 14, 18, 21, 42, 63 and 126

The mystery number is 126

Explanation:

The factors of a mystery number are 2, 7, 9.

So the mystery number = 2 x 7 x 9 = 126

She said there were nine other factors of her number.

Let's find the factors of 126

1 x 126 = 126

2 x 63 = 126

3 x 42 = 126

6 x 21 = 126

7 x 18 = 126

9 x 14 = 126

So, the factors are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

Therefore, the other factors are 1, 3, 6, 14, 18, 21, 42, 63 and 126

The mystery number is 126