is 99 divisible by any number?
161000
For 99, the answer is: No, 99 is not a prime number. The list of all positive divisors (i.e., the list of all integers that divide 99) is as follows: 1, 3, 9, 11, 33, 99.
1098822
We know that if the sum of the numbers that make up 99 is divisible by 3, then 99 is divisible by 3. Note: If you divide 99 by 3, you get 33 which is a whole number.
793360
An integer is chosen between 1 and 100. Numbers that are divisible by 8 = 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88 and 96. The rest are not divisible by 8.
1143521
The set of whole numbers between 1 and 100 that are not divisible by 3 or 11 is {2,4,5,7,8,10,13,14,16,17,19,20,23,25,26,28,29,31,32,34,35,37,38,40,41,43,46,47,49,50,52,53,56,58,59,61,62,64,65,67,68,70,71,73,74,76,79,80,82,83,85,86,89,91,92,94,95,97,98}. So there would be 59 such numbers.
1101817
Every number divisible by 9 is divisible by 3. For example, 7425 is divisible by 9, hence it is divisible by 3. However, a number divisible by 3 is not necessarily divisible by 9. For example 6, 12, 15, 21, 24, 30 are all divisible by 3 but none of them is divisible by 9.
624064
For one-digit and two-digit numbers, it's pretty trivial: the only ones divisible by 37 are 37 and 74. For three-digit numbers what I do is compare the number to a nearby multiple of 37 -- in particular, a nearby multiple of 111.
682771
We know that if the sum of the numbers that make up 29 is divisible by 3, then 29 is divisible by 3. Note: If you divide 29 by 3, you get 9.67 which is not a whole number.
3761
9,19,29,39,49,59,69,79,89,90,91,92,93,94,95,96,97,98,99. You have not mentioned if only natural numbers must be considered while counting the number of 9s that appear between 1 and 100. If only natural numbers are considered while counting, then 9 appears 20 times.
1451877
Numbers between 1 and 100 that are divisible by 12 but not by 36 are: 12, 24, 48, 60, and 84 - that is a total of 5 numbers are divisible by 12.
945793
You can divide 99 by two and if the result is an integer (whole number) then it is an even number. Otherwise, it is an odd number. 99 divided by 2 is 49.5, which is not an integer. Therefore, 99 is an odd number.
1185352
There are 11 numbers divisible by 9 between 1 and 100, and 25 numbers divisible by 4 between 1 and 100.
958420
there are (100/3) or 33 numbers between 1 and 100 which will be divisible by 3. Since the problem deals with numbers "between 1 and 100", I feel we should exclude both 1 and 100. Therefore, there are (99/2) or 49 numbers divisible by 2 between 1 and 100.
573172
3, 6, 9, 12, 15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93,96,99 are divisible by 3.
262215
There are 20 numbers divisible by 5 between 1 and 100, and 33 numbers divisible by 3 between 1 and 100. So there are 20 + 33 = 53, so 53 numbers divisible by one or the other, but this also includes every number which is divisible by both 5 and 3 twice.
904137
99 is a composite number. 99 = 1 x 99, 3 x 33, or 9 x 11. Factors of 99: 1, 3, 9, 11, 33, 99. Prime factorization: 99 = 3 x 3 x 11, which can also be written 99 = 3² x 11.
813888
There are 20 numbers divisible by 5 between 1 and 100, and 33 numbers divisible by 3 between 1 and 100.
201929
Answer. 9,19,29,39,49,59,69,79,89,90,91,92,93,94,95,96,97,98,99. You have not mentioned if only natural numbers must be considered while counting the number of 9s that appear between 1 and 100. If only natural numbers are considered while counting, then 9 appears 20 times.