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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 is a factor of 75?
The two-digit number that is a factor of 75 is 25. Factors of 75 include 1, 3, 5, 15, 25, and 75, and among these, 25 is the only two-digit number.
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.
How do you decide if a 2 digit number is a multiple of a 1 digit number?
To determine if a two-digit number is a multiple of a one-digit number, you can divide the two-digit number by the one-digit number. If the result is an integer (with no remainder), then the two-digit number is a multiple of the one-digit number. Alternatively, you can check if the two-digit number ends in a digit that confirms divisibility by the one-digit number (for example, even numbers for 2, ending in 0 or 5 for 5, etc.).
What is the largest two digit number with exactly 12 factors?
The largest two-digit number with exactly 12 factors is 96. To determine the number of factors, we can use the formula for the total number of factors based on the prime factorization of a number. The prime factorization of 96 is (2^5 \times 3^1), and using the formula ((e_1 + 1)(e_2 + 1)), where (e_1) and (e_2) are the exponents in the factorization, we find that ( (5+1)(1+1) = 12).
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 is a factor of 75?
The two-digit number that is a factor of 75 is 25. Factors of 75 include 1, 3, 5, 15, 25, and 75, and among these, 25 is the only two-digit number.
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.
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.
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.
How do you decide if a 2 digit number is a multiple of a 1 digit number?
To determine if a two-digit number is a multiple of a one-digit number, you can divide the two-digit number by the one-digit number. If the result is an integer (with no remainder), then the two-digit number is a multiple of the one-digit number. Alternatively, you can check if the two-digit number ends in a digit that confirms divisibility by the one-digit number (for example, even numbers for 2, ending in 0 or 5 for 5, etc.).
What 3 digit number has exactly 5 factors?
625 has five factors.
What 3 digit number with 2 and 5 as factors?
100
What is the largest two digit number with exactly 12 factors?
The largest two-digit number with exactly 12 factors is 96. To determine the number of factors, we can use the formula for the total number of factors based on the prime factorization of a number. The prime factorization of 96 is (2^5 \times 3^1), and using the formula ((e_1 + 1)(e_2 + 1)), where (e_1) and (e_2) are the exponents in the factorization, we find that ( (5+1)(1+1) = 12).
What is the largest 5--digit even number?
The largest 5-digit even number is 99998. This number is even because it ends in an 8, which is an even digit. It is also the highest possible 5-digit number, just two less than 99999, the largest 5-digit number overall.
