That's a series of 21 repetitions of the digit '9'. It looks like your cat got up on the table,
walked over to the keyboard, and stepped on the '9' key for a few seconds.
If this were an actual number, it could be more neatly expressed as [ 1021 - 1 ] . It has no
readily apparent mathematical or physical significance.
That means to multiply the number with itself, using it 3 times as a factor. In this case: 999999999999999999999 x 999999999999999999999 x 999999999999999999999
999999999999999999999 + 9 = 1000000000000000000008.
7.777777778x1073
999,999,999,999,999,999,999 + 1 = one sextillion.
You should have simply used your Windows calculator (it's built-in to the operating system) to find the answer... (17357816999999999999982642183)
That means to multiply the number with itself, using it 3 times as a factor. In this case: 999999999999999999999 x 999999999999999999999 x 999999999999999999999
999999999999999999999 + 9 = 1000000000000000000008.
Assuming you are talking about whole numbers, 999999999999999999999 + 1 = 1000000000000000000000
1000000000000000000000
7.777777778x1073
9,888,888,888,888,888,888,887
99999998900000001
No, 999999999999999999999 is not a prime number. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In this case, 999999999999999999999 can be divided by 3, 9, and other numbers, so it is not prime.
No numbers never end.
does your computer have a calculator ?? ------ the answer is 999999890000001
999,999,999,999,999,999,999 + 1 = one sextillion.
You should have simply used your Windows calculator (it's built-in to the operating system) to find the answer... (17357816999999999999982642183)