step 1: list all of the prime numbers that go into 36 and 145. 2*2*3*3=36 5*29=145 step 2: find all the common prime numbers between both sets. because there are no common prime numbers, the answer has to be 1.
-- List all the divisors (factors) of 36. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36 . -- Check over the list, and mark all the ones that are prime numbers. There are only two of them, so I'll let you handle that part.
Look up a list of prime numbers (a Google search for "prime numbers" or "list of prime numbers" should do); every number (greater than 1) that is NOT a prime number is composite.
All prime numbers are divisible by 1. There are an infinite amount of them, so it is impossible to list them.
85
step 1: list all of the prime numbers that go into 36 and 145. 2*2*3*3=36 5*29=145 step 2: find all the common prime numbers between both sets. because there are no common prime numbers, the answer has to be 1.
23 is prime. The rest aren't.
-- List all the divisors (factors) of 36. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36 . -- Check over the list, and mark all the ones that are prime numbers. There are only two of them, so I'll let you handle that part.
The list is far too long to list here (millions of them); a search on "list of prime numbers" can quickly give you the desired prime numbers.
Look up a list of prime numbers (a Google search for "prime numbers" or "list of prime numbers" should do); every number (greater than 1) that is NOT a prime number is composite.
The prime numbers from 1 to 36 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31.
Of the numbers 1,3,7,8,15,17,22,27,36,39,41,46,49 and 51, 5 of those are prime. 1,3,7, 17 and 41 are prime in this list.
The prime numbers between 1 and 36 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31.
All prime numbers are divisible by 1. There are an infinite amount of them, so it is impossible to list them.
85
It is impossible to list all the prime numbers as there are an infinite number of them. The list of prime numbers starts: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ... Suppose you could list all the prime numbers and have done so - there is no prime number which is not on the list. Multiply them all together and add 1. This number is not divisible by any of the listed prime numbers as there is always a remainder of 1. So either this new number is a prime number, or there is another prime number not listed which will divide into it. Which means that the list was not all the prime numbers; meaning it is impossible to list all the prime numbers.
36 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.