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No prime numbers are only divisible by one and by themselves.

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โˆ™ 2011-06-08 01:20:31
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Q: Are all prime numbers divisible by 4?
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Related questions

What prime numbers are divisible by 4?

There aren't any prime numbers divisible by 4. Prime numbers aren't divisible by anything except 1 and the number.


Which prime number is divisible by 2 3 4 and 5?

Prime numbers are only divisible by 1 and itself... so no prime number can be divisible by the numbers you listed.


Are most even numbers also prime numbers?

No in fact there is only one even prime number A number evenly divisible by itself and 1. Example 4 6 8 not prime numbers because they are all divisible by 2


What is the smallest number divisible by 4 prime numbers?

The smallest number divisible by first four prime numbers is 2x3x5x7 = 210.


Do any prime numbers end in 4?

No. If they end in 4, they are even numbers and divisible by 2, and therefore are not prime.


Is the number 105105 divisible by four different prime numbers?

105105 is divisible by 5 different prime numbers.


Is 15 divisible by 4 different prime numbers?

No.


Why are there no numbers under 200 divisible by 4 prime numbers?

Because the four smallest prime numbers are 2, 3, 5, and 7. If you multiply these four together you get 210 (which makes 210 the smallest number divisible by four unique prime numbers).


Do prime numbers end in 4?

No because if a number ends with for it is not prime. it is divisible by, but not limited to, 1,2 and 4


Is 20 a prime number?

No. Even numbers are never prime numbers. A prime number is a number that is only divisible by 1 and itself. Even numbers are always divisible by 2, so they are never prime.And 20 is also divisible by 4 and 5. Its factors are 1, 2, 4, 5, 10, and 20.


Is 24 a prime a number?

24 is not a prime number; prime numbers are numbers that are divisible by only itself and 1. 24 is divisible by 1, 2, 3, 4, 6, 8, 12, and 24.


Is the number prime or composite?

Prime numbers can only be divided evenly by one and themselves, for example, 3 can only be divided evenly by 1 and 3, so it is prime. Composite numbers are evenly divisible by at least 3 numbers, such as 4 which is divisible by 1, 2 and 4.


Are all numbers divisible by 3 and 4 divisible by 6?

Yes. If a number is evenly divisible by both 3 and 4, it will also be divisible by 6.This is because the prime factor of 3 is [3] -- in other words, 3 is a prime number -- and the prime factors of 4 are [2, 2].Thus, any number that is divisible by 3 and 4 will have as part of its prime factors the set [2, 2, 3]. (The smallest such number is 12, which is 2 x 2 x 3.) Since the prime factors of 6 are [2, 3] -- and [2, 3] is a subset of [2, 2, 3] -- then any such number must also be divisible by 6.Another way to look at it is to note that all numbers which are divisible by both 3 and 4 are also divisible by 12 (which is 3 x 4). Since 12 is divisible by 6, then all multiples of 12 will also be divisible by 6.


Is 242 a prime number?

No. Any even numbers (numbers ending in 2, 4, 6, 8, or 0) are even, and all even numbers are divisible by 2; eg. 242 / 2 = 121 - not prime.


Are all even numbers are divisible by 2 and 4?

All even numbers are divisible by 2, but all even numbers are not divisible by 4. Some that aren't are 6, 10, 14, 18, 22...


How do you check if a number is prime?

if its even, automatically not prime. 0s and 5s are not prime. add the first 3 numbers up, (from the right) and divide them by 8. if it is divisible, it's not prime. 4 is the same thing accept only the first 2 numbers from the right. That's all i can remember from the top of my head, and 6 might be add all of them together and divide, divisible=not prime.


Is 105 divisible by 4 different prime numbers?

No, only 3.


Are all numbers divisible by 9 also divisible by 4?

no, 18 is divisible by 9 but not by 4.


Which number is prime 4 or 10?

Neither 4 nor 10 is prime. A prime number is a number that is evenly divisibly only by 1 and itself, not any other numbers. 4 is also divisible by 2. 10 is also divisible by 2 and 5. Therefore, both 4 and 10 are composite numbers.


All numbers divisible by 8 and 12 are also divisible by?

All numbers that are divisible by 8 and 12 would also be divisible by 4.


Is 196 a prime number?

196 is not a prime number; it is divisible by several numbers such as 2, 4, and others.


What are the numbers that is not prime?

Numbers that are not prime are numbers that are divisible by integers other than one and itself. Since there are a boatload of these numbers, I will try to keep it brief:All integers with the last digit 2, 4, 6, 8, or 0 (besides 2 and 0 themselves) are not prime. (Numbers that are not prime are composite. Numbers ending in 2, 4, 6, 8, or 0 are always divisible by at least the number 2, hence they are not prime.)All integers ending with 5 (besides 5 itself) are not prime (these numbers are always divisible by at least the number 5).Everything else varies, though. For example, with digits ending with 3, 33 is not prime (divisible by 3 and 11), but 13 is prime. With 7, 17 is prime, but 77 is not (divisible by 11 and 7). Also, two-digit integers with identical tens and ones-place digits are not prime (with the exception of 11); these are all divisible by 11.That's the general rule of prime vs. not prime. As you can see, it's too lengthy and excruciatingly painful to list ALL of the composites, because they are abundant.


Are all numbers divisible by 8 also divisible by 4?

no


Are all numbers that are divisible by 8 are divisible by 4?

Yes.


All numbers divisible by both 4 and 15 are also divisible by what numbers?

a number is 6. All numbers divisible by both 4 and 15 are the multiples of 4 and 15. Since 4 and 15 have no prime factor in common (4 = 22, 15 = 3 · 5), then the least common multiple of 4 and 15 is equal to their product, namely 4 · 15 = 60. Every other multiple of 4 and 15 is divisible by 60. Thus, if 60 is divisible by a number then all the multiples of 4 and 15 are divisible by that number. Therefore, it is enough to check by which number in the given options is 60 divisible. Only 6 divides 60 and none of the other do. The answer must be (A).