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How do you know without multiplying the prime factors that the last digit of the number is 0?
If two of the prime factors are 2 and 5, the last digit of the number will be zero.
What are facts about each digit of 22?
Each digit is a prime number that has only two factors which are itself and one The prime factors of the number 22 are 2 and 11
What 3 digit number has the most factors?
512 has 9 prime factors
What four digit number has the most factors?
8192 has 13 prime factors
What is the smallest three-digit number that has only two factors?
101 is the first three-digit prime number.
What is the larest two-digit number with only 2 factors?
97 which is a prime number
What two digit number that has three different prime factors?
The only two-digit number that has three different prime factors is 2 x 3 x 5, which equals 30. This number has the prime factors 2, 3, and 5, all of which are distinct prime numbers. Any other two-digit number with three prime factors would have at least one repeated prime factor, making it not have three different prime factors.
What is three digit number with 2 and 9 as prime factors?
9 isn't prime, but one three-digit multiple of 18 is 108.
What is the largest 3 digit prime number whose square root is a prime number?
There is no three digit prime number whose square root is a prime number. Prime numbers have no factors other than 1 and themselves. Any number having a prime number as a square root is a composite number.
What is the largest 2 digit number with exactly 3 factors?
The largest two-digit number with exactly three factors is 99. A number has exactly three factors if it is the square of a prime number, specifically in the form ( p^2 ) where ( p ) is a prime. The only prime number whose square is a two-digit number is 7, since ( 7^2 = 49 ) and ( 11^2 = 121 ) exceeds two digits. Thus, 49 is the largest two-digit number with exactly three factors.
What is a two digit number that is a prime number and a factor of 100 and 1000?
The two-digit factors of 100 and 1000 are all composite.
What 2 digit number has a prime factors of 2 5 and 7?
It is: 70
