0
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
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoIt 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
Add your answer:
Earn +20 pts
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
What is 305 divisable by?
5All Factors of 305:1, 5, 61, 305
Is 305 a prime number?
No it is not.
What number is the exactly harfway between 285 and 325?
The number half way between them is their mean average (295 + 325) ÷ 2 = 305
What does 305 Miami mean?
305 Miami is like when you first dial a number for a phone thing. You will either start of with 305 or 786
Is number 2 divisible by 305?
no because its not an even number.
What number is halfway between 305 and 405?
(305 + 405) 355 ÷ 2 = 355 Therefore, 355 is half way between 305 and 405.
What is the exact number between 285 and 325?
285+325=610/2= 305
What number is 10 less than 305?
What is 10 less than 305
What year is a 305 engine with casting number 14088551?
What I found that its 1986-1988 I have the same 305 sitting in my garage
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 number goes into 15 and 305?
1 and 5.
