Question

+7)=511
Hence 5 is a factor of 55.
The divisibility rules of 4 and
Divisibility of difference of
If a number is a factor of two give
numbers. In other words, if as a
For example, since 5 is a factor of
difference of (35 - 20).
Method to check if a number
To test if a number is prime, test
number 97. Let us divide 97 by​

Answer 1

Answer:

Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number. So, for instance, 2728 has alternating sum of digits 2 – 7 + 2 – 8 = -11. Since -11 is divisible by 11, so is 2728.

Explanation:

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Answer 2

Answer:

I Don't know this question and I think this question related from mathematics please ask this question in mathematics not in science