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To find the units digit of 8 to the power of 50, we need to look for a pattern in the units digits of powers of 8. The units digit of powers of 8 cycles in a pattern: 8^1 = 8, 8^2 = 4, 8^3 = 2, 8^4 = 6, and so on. Since the cycle repeats every 4 powers, we can divide 50 by 4 to find that the 50th power will have the same units digit as 8^2, which is 4. Therefore, the units digit of 8 to the power of 50 is 4.
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How many possibilities are there with the four digit numbers 0000-9999 while the first number cannot be 0 or 9?
The first digit can be any one of 8. For each of these . . .The second digit can be any one of 10. For each of these . . .The third digit can be any one of 10. For each of these . . .The fourth digit can be any one of 8.Total possibilities = (8 x 10 x 10 x 8) = 6,400
What is an 8 digit number called?
A truipia
How can you use the digit 8 four times to make 89?
88 + 8/888 + 8/8 = 89
How many three-digit whole numbers have no 7's and no 9's as digits?
The first digit can be one of {1, 2, 3, 4, 5, 6, 8}, ie one of 7 digits; for each of these, the second digit can be one of {0, 1, 2, 3, 4, 5, 6, 8}, ie one of 8 digits; for each of these two, the third digit can also be one of {0, 1, 2, 3, 4, 5, 6, 8}, ie one of 8 digits; making 7 × 8 × 8 = 488 such three digit numbers.
How many 4-digit numbers are possible if the hundreds digit is 8 and if repetition of digits is allowed?
-4
