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What is the prime factorization of 24

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Q: Which numbers less than 100 with a 1 in the units place are a prime number?
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what is less than 100 with a 1 in the units place are prime number?

2, 3, 5, and 7 are prime numbers for one digit numbers. 1 is NOT a prime number.


The largest known prime number is equal to how many inches?

Prime numbers are pure numbers, without units or dimensions.


What are all the prime numbers with 1 in the units place?

All of them??? There are probably infinitely many. Here are the first few numbers with 1 in the units place: 1: Not usually considered a prime number. 11: Prime 21: Not prime (divisible by 3) 31: Prime 41: Prime 51: Divisible by 3 61: Prime 71: Prime 81: Divisible by 3 91: Divisible by 7 101: Prime ...


Is the number 2.9 centimeters composite or prime?

The question doesn't apply to mixed numbers, like 2.9. A mixed number is neither one. Also, "2.9 centimeters" is not a number; it's a length. Prime and composite numbers have no units. They're just bare numbers. 29 is a prime number.


Do all 2 digit prime numbers have a units number of 1 3 7 or 9?

Yes


How many two digit prime numbers are there between 1-100 such that they have digit 7 in their units place?

There are 5 of them.


What is the units digit of the product of the first 100 prime numbers?

0 Look at the product of the first 3 prime numbers: 2 x 3 x 5 = 30. Any number multiplied by 30 will have a 0 in the units digit. So, no matter how many prime numbers you are multiplying, if once you have a number ending in 0, all of the rest will end in 0.


What is the digit in the units place of a number is 5 if the no lies between 150 and 200 will be composite or prime?

For any integer greater than 5, where the units digit is 5 then that number can be expressed as the product of n and 5. As such, the number is composite. Therefore all numbers in the range 150 to 200 that have a units digit of 5 are composite,.


What is the units digit of the product of the 1000 smallest prime numbers?

Long way: find the smallest prime numbers and use a calculator. Short way: recognize that 2 and 5 are both prime. Multiply them to get 10. We know that every multiple of ten has a 0 in the units place, so the answer to your question is 0.


How many two digit prime numbers have a units digit of 7 and what are the prime numbers?

17, 37, 47, 67, 97


How many prime numbers up to 100 have the number 9 as their units digit?

19 29 59 79 89 Five of them.


Two prime numbers between 100 and 199 such that the tens digit is a prime number and the tens and ones digit taken together are a 2 digit prime number find the sum of these two prime numbers?

For the tens digit to be a prime number then it must equal 2, 3, 5 or 7. There are four 3-digit prime numbers that fit the above condition and also have the tens and units digits forming a 2-digit prime number. 131, 137, 173, 179. The person supplying the question may like to sum the various combinations.

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