I am tring to figure out which of these numbers have neither 2 nor 5 as a factor?

1.125
2.251
3.512
4.215

Any number multiplied by 2 will produce a number ending with an even digit. Examples: 2, 4, 6, 8, 16, 50, etc.

Any number multiplied by 5 will produce a number ending with either 0 or 5.
Examples: 5, 10, 25, 50, 95, etc.

Which of your choices ends with an odd number that is not 5?

thank you Ms.Sue:)

To determine which of the given numbers have neither 2 nor 5 as a factor, you need to check if each number is divisible by either 2 or 5.

Let's go through each number one by one:

1.125:
To check if 1.125 is divisible by 2 or 5, we need to determine if it contains either 2 or 5 as a factor. In this case, neither 2 nor 5 is a factor of 1.125, so it meets the condition.

2.251:
To check if 2.251 is divisible by 2 or 5, we need to determine if it contains either 2 or 5 as a factor. In this case, neither 2 nor 5 is a factor of 2.251, so it meets the condition.

3.512:
To check if 3.512 is divisible by 2 or 5, we need to determine if it contains either 2 or 5 as a factor. In this case, 2 is a factor of 3.512, so it does not meet the condition.

4.215:
To check if 4.215 is divisible by 2 or 5, we need to determine if it contains either 2 or 5 as a factor. In this case, 5 is a factor of 4.215, so it does not meet the condition.

Therefore, the numbers that have neither 2 nor 5 as a factor are 1.125 and 2.251.