ok i got a crazy math question, first to crack gets 10 points
here it is
Math Power
Look at the following mathematical expression:
12 to the 100th power
You don’t need to find the value of the final product, but what digit will be in the ones place of the final product?
2007-12-04 11:59:22 · 6 answers · asked by Jake Z 1 in Science & Mathematics ➔ Mathematics
Just look at the last digits:
12^1 = 2
12^2 = 4
12^3 = 8
12^4 = 6
12^5 = 2
12^6 = 4
12^7 = 8
12^8 = 6
The pattern repeats after every 4 digits. So the 100th power will be the same as the 96th, or 92nd, or even the 4th power.
12^4 ends in 6
12^100 will also end in 6
2007-12-04 12:03:29 · answer #1 · answered by Puzzling 7 · 3⤊ 0⤋
6
2007-12-04 12:05:15 · answer #2 · answered by ben e 7 · 1⤊ 0⤋
Consider 12^100 modulo 10. So, the number in the one's place is 6.
2007-12-04 12:12:13 · answer #3 · answered by Eric E 2 · 1⤊ 0⤋
8
2007-12-04 12:03:03 · answer #4 · answered by Emily 5 · 0⤊ 3⤋
is it 1
2007-12-04 12:03:41 · answer #5 · answered by [*So Confused )*-B.L.B- 2 · 0⤊ 3⤋
0
yep
2007-12-04 12:02:30 · answer #6 · answered by Charles 2 · 0⤊ 3⤋