Because all the other numbers in the nineties have more than two factors.
Ninety-seven is a prime; the remainder of the nineties are composites.
The prime number just before ninety-seven is 89.
101 is the prime number nearest to 100.
Ninety seven.
97 is prime. Prime numbers don't have proper factors.
97 is a prime number because its only factors are 1 and itself; 97.
97 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are every other positive integer except 1 and 0. 1 and 0 are neither prime, nor composite.
The number 795 is "seven hundred ninety-five.." As a year or street address, it is "seven ninety-five."
yes because 103, 107 many others are prime
The number seven is 7 which is a Prime number.
Not any more It is common to do so, but not good form. For example, the number 1,097 should be written "one thousand ninety seven" not "one thousand and ninety seven". Similarly, the number 1,197 should be written "one thousand, one hundred ninety seven" not "one thousand, one hundred and ninety seven.
97 is already prime. It doesn't need a tree.