2 : The number ends with a 2, 4, 6, 8, or zero. (The number is 'even'.)
3 : The sum of the digits in the number is divisible by 3 .
5 : The number ends with a zero or a 5 .
6 : The number passes the tests above for both 2 and 3 .
10 : The number ends with a zero.
26
If the rules for 2 and 3 work, the number is divisibale by 5.
Yes, you can tell using the divisibility rules. The answers are yes for all but 5 and 10.
You have to use the rules of 4 and 9 Using the rules of 2 and 18 won't work because the smallest common multiple of 2 and 18 is 18 not 36. 3 and 12 won't work either because the smallest common multiple of 3 and 12 is 12 not 36. However 4 and 9 does work because their biggest common divisor is 1 so multiplying them works. The biggest common divisor of 2 and 18 is 2 and the biggest common divisor of 3 and 12 is 3
It is divisible by 3 and 9 but not the others.
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
26
3+7=10
If the rules for 2 and 3 work, the number is divisibale by 5.
No.
Oh honey, divisibility rules have been around longer than your grandma's secret meatloaf recipe. But if you want a name to drop at your next trivia night, credit goes to good ol' Euclid. He's the OG mathematician who laid down the law on how numbers can play nice and divide evenly.
Yes, you can tell using the divisibility rules. The answers are yes for all but 5 and 10.
You have to use the rules of 4 and 9 Using the rules of 2 and 18 won't work because the smallest common multiple of 2 and 18 is 18 not 36. 3 and 12 won't work either because the smallest common multiple of 3 and 12 is 12 not 36. However 4 and 9 does work because their biggest common divisor is 1 so multiplying them works. The biggest common divisor of 2 and 18 is 2 and the biggest common divisor of 3 and 12 is 3
Yes.
It is divisible by 3 and 9 but not the others.
If the number is even, it is divisible by 2. If the sum of the digits is a multiple of 3, the whole number is divisible by 3.
Being Divisibel by 3 and 31