No, it is not. 77 is divisible by 7 & 11, not just itself & 1. A prime number is a natural number which has exactly two distinct natural number divisors: 1 & itself.77 is not a prime number because it has more than two factors
Natural (whole) numbers are 1,2,3, and so on.A natural number less than 7 is 1,2,3,4,5,6. Sometimes zero is included.
no..a natural number is a whole number
No. Closed means that you could do the operation (division) on any two natural numbers and you would get a result in the natural numbers. Take 7/3 for example, this is obviously not a natural number.
A natural number is always a rational number .
Yes 7 is a natural whole number and it is also a prime number
The number 6 is not a natural number on the pH scale if that is what you mean. In fact the number 7 is a natural and neutral number on the pH scale ( on the pH scale number 7 is a green colour.)
Not necessarily. The difference between a = 7 & b = 7 is 0, and that is not a natural number.
The square root of 49 is 7 and it is a natural number because natural numbers are from 0-infinity
yes
No, 7 is a natural number divisible by 7 and not 14 for example. In fact every odd multiple of 7 (i.e. 7 times 1,3,5,7,...) is divisible by 7 and not 14.
No.
7 is a rational number because whole numbers, integers, and natural numbers fit under rational and 7 is a natural number:)Yes.
No it is not. By definition, a prime number must be a natural number. Negative numbers are not in the set of natural numbers.
The natural numbers are the counting numbers 1, 2, 3, .... (sometimes 0 is included). 7 is one of these, thus it is a natural number. As a result of the natural numbers being the counting numbers they are the same as the positive integers (of which 7 is one).
The negative square root of 49 is -7. -7 is whole, integer, and rational number. It's not a natural or irrational number.
These numbers would be called multiples of 7. The number 7 times any natural number {1,2,3,4,5,6,....} will be a multiple of 7: {7,14,21,28,35,42,....}