Question

Write 278 as a product of prime numbers.

Multiply 28x72 using lattice method.

Answer 1

278 = 2*139
139 is a prime number to that is the end


***** 2 ***** 8 ****

1->2 1/4 **** 5/6 ** 7

9->0 0/4 **** 1/6 ** 2

11->1 *** 6
so
2016

Answer 2

I don't understand how you got 2016. I understand how you added to get the 1,9, 11, and 6. But I do not understand where you got the 1->2, 9->0, and 11->1.