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It really isn't worthwhile to find complicated divisibility rules for large numbers like 305 - because if there really is a divisibility rule, it will certainly be more complicated than just doing the division.
Anyway, 305 = 5 x 61, so if a number is divisible by 305, it must be divisible by 5, and by 61. Divisibility by 5 is fairly simple; a number is divisible by 5 if it ends with 0 or 5. For divisibility by 61, see the following link; it looks fairly complicated.
http://www.primepuzzles.net/puzzles/puzz_101.htm
It really isn't worthwhile to find complicated divisibility rules for large numbers like 305 - because if there really is a divisibility rule, it will certainly be more complicated than just doing the division.
Anyway, 305 = 5 x 61, so if a number is divisible by 305, it must be divisible by 5, and by 61. Divisibility by 5 is fairly simple; a number is divisible by 5 if it ends with 0 or 5. For divisibility by 61, see the following link; it looks fairly complicated.
http://www.primepuzzles.net/puzzles/puzz_101.htm
It really isn't worthwhile to find complicated divisibility rules for large numbers like 305 - because if there really is a divisibility rule, it will certainly be more complicated than just doing the division.
Anyway, 305 = 5 x 61, so if a number is divisible by 305, it must be divisible by 5, and by 61. Divisibility by 5 is fairly simple; a number is divisible by 5 if it ends with 0 or 5. For divisibility by 61, see the following link; it looks fairly complicated.
http://www.primepuzzles.net/puzzles/puzz_101.htm
It really isn't worthwhile to find complicated divisibility rules for large numbers like 305 - because if there really is a divisibility rule, it will certainly be more complicated than just doing the division.
Anyway, 305 = 5 x 61, so if a number is divisible by 305, it must be divisible by 5, and by 61. Divisibility by 5 is fairly simple; a number is divisible by 5 if it ends with 0 or 5. For divisibility by 61, see the following link; it looks fairly complicated.
http://www.primepuzzles.net/puzzles/puzz_101.htm
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BeauIt really isn't worthwhile to find complicated divisibility rules for large numbers like 305 - because if there really is a divisibility rule, it will certainly be more complicated than just doing the division.
Anyway, 305 = 5 x 61, so if a number is divisible by 305, it must be divisible by 5, and by 61. Divisibility by 5 is fairly simple; a number is divisible by 5 if it ends with 0 or 5. For divisibility by 61, see the following link; it looks fairly complicated.
http://www.primepuzzles.net/puzzles/puzz_101.htm
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Is 305 a prime number?
No it is not.
What percent of 305 million is 5.3 million?
100(5.3/305) = 1.7 %, to the justified number of significant digits.
What is the number between 285 and 325?
It is: (285+325)/2 = 305
What is 14.3 percent of 305 million?
To find 14.3 percent of a number, multiply the number by 0.143. In this instance 305000000 = 43615000. Therefore, 14.3 percent of 305 million is equal to 43615000.
What number minus 30 percent equals 305?
305 x 30% = 91.50 305.00 +91.50 = 396.50 396.50 - 30% = 305.00
