The last 2 digits are divisible by 4
1312 is (12÷4=3) (1312 ÷ 4=328).
7019 is not- so four does not go in (evenly).
That one is great, but I have found one that works too. Divide the number by two, if it is still even- it is a multiple of four. ( Divide in half one more time to get your answer).
2.50
The least 4 factors of 144 are 1, 2, 3, and 4 .
There is no divisibility rule for 13 because it is a prime number. If you are thinking: why is there a divsibility rule for 2 and 3 then. Well, i don't know so go look it up on google.
3 - 31
It is 3 6 9
By tautology. If it did not work, it would not be a divisibility rule!
1, 2, 3 and 4
1, 2, 4 and 47
What is the divisblity rule by 8
There is no easy rule for divisibility by 34.
The divisibility rule for 2 works because the base of our number system, 10, is divisible by 2.
Able to Be Divided
2.50
2 squared 1 = 4 so the divisibility rule is that it is divisible by 1, 2 and 4.
Judging by some of the questions asked on this site, the first rule is that divisibility is a concept that applies only to whole numbers.
The least 4 factors of 144 are 1, 2, 3, and 4 .
the number is even.