0
16 (1, 2, 4, 8, 16) and 81 (1, 3, 9, 27, 81).
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
The prime factors of a two-digit number are 2 5 and 7what is the number?
As a product of its oprime factors: 2*5*7 = 70
What is the largest 3-digit number that only has 2 and 5 as prime factors?
The only number that ONLY has two and five as factors is 10, which has two digits, so there are no numbers that are three digits long and ONLY have two and five for factors. However, if you are asking what the largest three digit number that has two and five for factors, it would be the largest three digit number with ten as a factor, as ten the the LCM of two and five, and that would be 390.
What are the factors of 5 in composite numbers?
5 is a prime number having 1 and 5 as its only factors. It makes no difference to the factors of 5 if the digit 5 is in composite numbers.
What is the largest 3 digit number that is divisible by 5 and 13?
130, 260,390,520,650,780,910.1040. So the largest three digit number with factors of '5' & '13' is 910.
What 2 digit number has a prime factors of 2 5 and 7?
It is: 70
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.
The prime factors of a two-digit number are 2 5 and 7what is the number?
As a product of its oprime factors: 2*5*7 = 70
What two digit number that has three different prime factors?
It can be 30 whose prime factors are 2, 3 and 5
What is the largest 3-digit number that only has 2 and 5 as prime factors?
The only number that ONLY has two and five as factors is 10, which has two digits, so there are no numbers that are three digits long and ONLY have two and five for factors. However, if you are asking what the largest three digit number that has two and five for factors, it would be the largest three digit number with ten as a factor, as ten the the LCM of two and five, and that would be 390.
Is the number 65 prime or not?
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 65 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 5. (You can tell this because the last digit is a 5. If the last digit - the digit in the ones place - is a 5 or a 0, the number is divisible by 5.) Therefore, 65 is a composite number.
Is 105 a prime or composite number?
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 105 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 5. (You can tell this because the last digit is a 5. If the last digit - the digit in the ones place - is a 5 or a 0, the number is divisible by 5.) Therefore, 105 is a composite number.
What 3 digit number has exactly 5 factors?
625 has five factors.
What 3 digit number with 2 and 5 as factors?
100
What are the factors of 5 in composite numbers?
5 is a prime number having 1 and 5 as its only factors. It makes no difference to the factors of 5 if the digit 5 is in composite numbers.
What is the largest 3 digit number that is divisible by 5 and 13?
130, 260,390,520,650,780,910.1040. So the largest three digit number with factors of '5' & '13' is 910.
What 2 digit number has a prime factors of 2 5 and 7?
It is: 70
What is the greatest two digit number whose prime factors are all 2s?
'64' = 2^(5) NB 2^(6) = 128
