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What else can I help you with?
How could you adapt the rule for division by 3 to decide easily when a number is divisible by 9?
Just add up the digits and if that sum is divisible by 9 then the original number is divisible by 9. Example 729 = 7+2+9 = 18 (18 is divisible by 9 therefore 729 is divisible by 9) 123456789 = 1+2+3+4+5+6+7+8+9 = 45 (45 is divisible by 9 therefore 123456789 is divisible by 9)
Is 729 divisible by3?
Since the sum, 18, of the digits of 729 is divisible by 3, 18 = 3 x 6, then 729 is divisible by 3.
Is 729 divisible by 2?
No.
Cube of 9?
It is 9*9*9 = 729
What is 6561 divided by 9?
729
Is 729 divisible by 9 or 8?
729 is divisible evenly by 9, but not evenly by 8, quotient is 91, remainder is 1
Is 729 divisible by 8 and 9?
No.
What is 729 by?
729 is divisible by 1, 3, 9, 27, 81, 243, 729.
How do you know that 729 is not a prime number?
It is divisible by 9.
What is divisible by 729?
Multiples of 729.
How could you adapt the rule for division by 3 to decide easily when a number is divisible by 9?
Just add up the digits and if that sum is divisible by 9 then the original number is divisible by 9. Example 729 = 7+2+9 = 18 (18 is divisible by 9 therefore 729 is divisible by 9) 123456789 = 1+2+3+4+5+6+7+8+9 = 45 (45 is divisible by 9 therefore 123456789 is divisible by 9)
Is 729 divisible by3?
Since the sum, 18, of the digits of 729 is divisible by 3, 18 = 3 x 6, then 729 is divisible by 3.
Is 729 divisible by 2?
No.
Is 729 divisible by 6?
yes!
What is the cube root of 729?
Answer: -9 -9 * -9 = 81 81 * -9 = -729
Cube of 9?
It is 9*9*9 = 729
What is 9 to the third power?
93=9*9*9. 9*9 is 81, and 81*9 is 729. 93=729.
