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because a Prime number is 1 and itself and we dont use 1 times one... ( i think)
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How do we know that 1 is a prime number?
Mathematicians define a prime number as one with exactly two factors. 1 does not qualify.
What is the smallest number with 3 different prime factors?
The number 6. Its prime factors are 1,2 & 3 * * * * * Most mathematicians would argue that the correct answer is 2*3*5 = 30 on the grounds that 1 is NOT a prime.
Is 2 a prime number?
2 is a prime number because it is only divisible by 1 and itself.Ex:1*2=2It is the only even prime number and the smallest prime number!Yes and 2 is the only even prime number
What is the probability of getting a prime number when you roll a dice?
On a standard die, 2:1 in favour. This would be correct if 1 and 2 are accepted as prime numbers, which is allowed by some mathematicians and theories though not by all. ---- Having worked it out myself, I believe there is actually an even probability: Prime numbers: * 2 * 3 * 5 Not-prime numbers: * 1 * 4 * 6
Is 1 the lowest prime number?
No; 1 is not a prime number. The lowest prime number is 2.
Why did the mathematicians decide not to call 1 a prime number?
Because as a prime number it is very boring.
Why does mathematicians decide not to call 1 a prime number?
1 is not a prime number because it can be evenly divided by itself and by 1, the opposite as per the definition of a prime number.
How do we know that 1 is a prime number?
Mathematicians define a prime number as one with exactly two factors. 1 does not qualify.
What are the primenumbers?
A prime number is a positive integer that is ONLY divisible by the number 1 or itself. Prime numbers and their properties were first studied extensively by the ancient Greek mathematicians.
Why do you think that the mathematicians decide not to call 1 a prime number?
Because it can be multiplied by any number 1x2=2 1x3=3 x14=4 1x5=5 1x6=6 1x7=7 hope this helped. A prime number is a number that can only be divided by one and itself. A prime number can therefore be divided by two numbers. In the case of the number one it can only be divided by one number.
What is the lowest prime number 0 1 2 3 4 5?
Answer: one Answer: two. In the past, one used to be considered a prime number, but currently most mathematicians don't count it as a prime number.
What is the smallest number with 3 different prime factors?
The number 6. Its prime factors are 1,2 & 3 * * * * * Most mathematicians would argue that the correct answer is 2*3*5 = 30 on the grounds that 1 is NOT a prime.
Why did mathematics decide to not call 1 a prime number?
Because a prime number has two factors whereas 1 has only one factor which is itself
How do you decide if a number is prime or composite?
a prime number is if the number only can be divided by 1 and itself. If it has more than 2 factors it is a composite
Why isn't 1 considered a prime number?
1 can only be divided by one number, 1 itself, so with this definition 1 is not a prime number. It is important to remember that mathematical definitions develop and evolve. Throughout history, many mathematicians considered 1 to be a prime number although that is not now a commonly held view.
Is 2 a prime number?
2 is a prime number because it is only divisible by 1 and itself.Ex:1*2=2It is the only even prime number and the smallest prime number!Yes and 2 is the only even prime number
Why do mathematicians say that 1 is'nt prime?
It is because of the way in which primes are defined.
