99
One: 97
91 93 97
49
Nineteen. They are: 5101520253035404550556065707580859095
The prime numbers that are greater than 80 and less than 100 are 83, 89, and 97.
24 of them.
99
One: 97
91 93 97
420
49
83 89 97.
Not at all. For example: gcf(101, 102) = 1 gcf(40, 80) = 40
Yes. Simple example: pick 2 primes greater than 100 and 2 less than 100. For each pair, GCF = 1
To find the number of whole numbers less than 100 that are 10 greater than an odd whole number, we can set up an equation. Let x represent the odd whole number. Therefore, the number that is 10 greater than x is x + 10. Since x is odd, it can be represented as 2n + 1, where n is a non-negative integer. Substituting this into the equation x + 10 = 2n + 1 + 10, we get 2n + 11. To find the number of such numbers less than 100, we need to find the largest possible value of n such that 2n + 11 < 100. Solving for n, we get n < 44.5, which means the largest possible integer value for n is 44. Therefore, there are 45 odd whole numbers less than 100 that are 10 greater than an odd whole number.
Nineteen. They are: 5101520253035404550556065707580859095