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It can be 30 whose prime factors are 2, 3 and 5
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What is the smallest 2 digit number with only 2 factors?
It is 11 which is a prime number whose factors are itself and one
How is prime factorization different from finding factors of a number?
All numbers have factors. Some factors are prime numbers, some are composite numbers, one is neither. When finding the factors of a number, you find all the factors. The prime factorization is a multiplication string of just prime factors that will total the given number.
What three digit number has the most factors?
Using prime factorization, there are 2 three digit numbers with 9 factors: 512 and 768. There are no three digit numbers with 10 or more prime factors. 512=2^9 and 768=3*2^8
What number has five different prime factors?
Since there are an infinite number of prime numbers, there are infinite numbers with any given number of prime factors.
What is the largest three-digit number that has only 2 and 5 as prime factors?
800 2x2x2x2x2x5x5
What eight digit number does not have at least 3 different prime factors?
16,777,216 is one.
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 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 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 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 2 digit number has a prime factors of 2 5 and 7?
It is: 70
What number has exactly 3 prime different factors one which is 5 and is divisible by 11 the first digit is a square number the last two digits are different primes numbers?
935
