We can see that all the above two digits numbers have only two factors, one is 1 and another is themselves. Now, we can observe that the greatest two digit prime number is 97. So, the correct answer is “97”. Note: The greatest two digit natural number is 99.
What is the smallest 2 digit number with 12 factors?
a^11 format – No two digit number possible. Hence there are 5 two digit numbers having exactly 12 factors – 60,72,84,90,96.
What is the smallest two digit number that has only 4 factors?
25 is the smallest 2 digit number having exactly 4 factors
Which number has at least three factors?
As it turns out, the only positive integers with exactly three factors are the squares of primes. For instance, the factors of 9 are 1, 3, and 9, and the factors of 49 are 1, 7, and 49.
What are number factors?
The factors of a number are the numbers that divide into it exactly. The number 12 has six factors: 1, 2, 3, 4, 6 and 12. If 12 is divided by any of the six factors then the answer will be a whole number.
Which is the biggest two digit number?
99
Have a look! The smallest 2-digit number is 10 and the greatest 2-digit number is 99.
What is the largest prime number of two digits?
97
97 is: the 25th prime number (the largest two-digit prime number in base 10), following 89 and preceding 101.
What 2 digit number has the most factors?
30 = 2 * 3 * 5 So, LCM = 2*3*5 = 30. So, 90 would be the largest 2-digit number that has those factors.
How many 2 digit numbers have exactly 3 factors?
This is because a number will have three factor if and only if the number is a square of a prime number. So 25 and 49 are the only two digit numbers with exactly three factors.
How many 2 digit numbers have odd number of factors?
The only numbers that have an odd number of factors are perfect squares. so the only perfect squares that are two digits are 16, 25, 36, 49, 64 and 81. Six.
Can a number with 5 factors be a prime number?
Since 5 is a prime number, it cannot be the product of two integers greater than 1, which implies that a number having 5 factors must be of a form of (prime)^4 –> the number of factors = (4 + 1). There are only 2 two-digit numbers which can be written this way: 2^4 = 16 and 3^4 = 81.
How to find the number of digits in two integers?
Given two integers a and b. The problem is to find the number of digits in the product of these two integers. Recommended: Please solve it on “ PRACTICE ” first, before moving on to the solution. Naive Approach: Multiply the two numbers and then by using looping construct find the number of digits in the product.
