213=9261 213=21x21x21
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Oh, what a happy little question! To write 21 as a power, we can express it as 3 to the power of 2, because 3 multiplied by itself twice equals 9, and then 9 multiplied by 3 again equals 21. Just like painting a beautiful landscape, expressing numbers as powers can bring a sense of harmony and balance to our mathematical creations.
(27)3 = (2)21 = 2,097,152
2.954x 10^21 10^21 =1,000,000,000,000,000,000,000 x 2.954=? 295,400,000,000,000,000,000
21 to the 2nd power is 441.
1/3 of 21 = 71/3 of 21 = 71/3 of 21 = 71/3 of 21 = 7