If you have a set of 45 numbers, then there is one combination that includes all 45 numbers and 45! = 45 x 44 x 43 x ... x 2 x 1 ≈ 1.19622 x 1056 permutations (ways of ordering) all 45 numbers.
About 13million,
Any 6 from 45 = 814506045C6 = 8145060
Using the combination fuction, chose three numbers from 45 numbers. The answer is 14,190.
There are 45 prime numbers from 1 to 200.
Six: 1 3 5 9 15 45.
There are 45 such numbers.
About 13million,
Any 6 from 45 = 814506045C6 = 8145060
There are 45 such numbers.
9, 15, 45 are the composite factors of 45.
Number of combinations = 45C6 = 45!/6!(45-6)! = 8,145,060
90/2 = 45 180/4 = 45 and infinitely many more.
number of prime numbers between 45 and 60 = 3 prime numbers between 45 and 60 = 47 53 59
Using the combination fuction, chose three numbers from 45 numbers. The answer is 14,190.
45
45 of them.
45 has only one number and that is 45. It is odd so 45 has one odd number.