What is the greatest number of 3 digit which has 2 3 5 and 10 as its factors?
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What is the greatest number of 3 digit which has 2 3 5 and 10 as its factors?
Or 30 x 33 = 990. It is the largest 3 digit multiple of 30. ∴ 990 is the largest 3 digit number which has 2, 3 and 5 as factors.
What is the greatest 3 digit number that has only 3 factors?
For example: 11 is a prime number whose square is 121, a 3-digit number,which has only 3 factors. Now, The greatest 3 digit perfect square number is 961 (square of 31) and smallest is 100(square of 10). so, the square of all prime numbers which is between 10 and 31 is the 3-digit number which has only 3 factors.
What 3 digit number has the most factors?
Examples
n | d(n) | Divisors of n |
---|---|---|
720 | 30 | 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720 |
840 | 32 | 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840 |
What 3 numbers have 3 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 is the greatest 2 digit number?
99
The largest 2-digit number is 99 as the next number is 100 which is a 3-digit number. The smallest two-digit number is 10 because the previous number is 9 which is a one-digit number.
How many numbers exactly have 2 digits?
90
The total number of two digit numbers is 90. From 1 to 99 there are 99 numbers, out of which there are 9 one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. If one digit numbers are subtracted from 99 we get 90 two-digit numbers.
What will be the total number of two digit number which have only 3 factors including 1?
So, the Answer is 25,49. Thank you for asking this question. Every number greater than 1 has at least two factors; itself and 1, which is true for every prime number.
Which 2 digit number has the most factors?
Table of Factors and Multiples
Factors | Multiples | |
---|---|---|
1 | 1 | 8 |
1, 2 | 2 | 16 |
1, 3 | 3 | 24 |
1, 2, 4 | 4 | 32 |
What can go into 96?
Solution: Factors of 96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96.
How many factors does 7 have?
two factors
Factors of 7 are 1 and 7. The number 7 has only two factors, and hence it is a prime number.