Question

In how many ways 648 cab be written as two factors

Answer 1

I think it is answer is20

Answer 2

First break 648 into PRIME FACTORS

648 = 2*2*2*9*9)

Break the three 2s, and two 9s into 2 groups

Examples. (2)(2*2*9*9) or 2*324

Or (2*2)(2*9*9) or 4*162

Or (2*2*2)(9*9) or 8*81

Or (2*2*2*9)(9 ) or 72* 9

Or (2*2*9)(2*9) or 36*18

Then there is 1*648

So, I found 6 ways to break 648 into 2 factors

✔⭐HOPE IT HELPS YOU⭐✔